Cheyenne Garden Gossip

Gardening on the high plains of southeastern Wyoming


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Modern botanic gardens: How does the Cheyenne Botanic Gardens compare?

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Cheyenne Botanic Gardens director Shane Smith addresses a crowd of more than 100 people at the opening of the Grand Conservatory in August 2017. To the left is Cheyenne, Wyoming, mayor, Marian Orr, in blue. Photo by Barb Gorges.

Modern botanic gardens: How does the Cheyenne Botanic Gardens compare?*** Click any of the smaller photos to see them full size.***

Also published at Wyoming Network News

By Barb Gorges

I’ve become a connoisseur of botanic gardens the last five years. Everywhere we travel I’ve found at least one. How does the Cheyenne Botanic Gardens compare, now that it has acquired a conservatory? What makes a modern botanic garden?

The roots of botanic gardens come from ancient royalty, like the Hanging Gardens of Babylon, and medieval monastery gardens for study and propagation of medicinal plants. The roots of major botanic gardens today are similar, often former estates of the wealthy or associated with universities, but also built, like ours, with community support.

The American Public Gardens Association, of which the CBG is a member, requires members are:

–Open to the public at least part-time

–Have aesthetic display, educational display and/or site research

–Maintain plant records

–Have one professional staff member, paid or unpaid

–Provide visitors ways to identify plants via labels, maps, etc.

The association’s definition doesn’t say it, but refreshing the public’s soul is an important outcome.

The six gardens I visited last fall fit the definition in very different ways, but have much in common with each other and our local botanic gardens.

Longwood Gardens water garden, fountain display and conservatory. Photos by Barb Gorges.

Longwood Gardens, https://longwoodgardens.org, outside Philadelphia, was Pierre du Pont’s personal garden started in 1907 with a 600-foot flower bed. Today it has 1,083 acres, including the 4-acre conservatory of plant exhibits, 1,300 employees and volunteers, and 1.5 million visitors annually. Longwood has all the additional components of a modern botanic garden: special events including concerts and classes; volunteer, internship and membership programs; and plant research and conservation work.

Modern gardens also have sustainability programs. Longwood has a 10-acre solar field and composting and integrated pest management programs although the Flower Walk beds were bordered by little white signs: “Danger, Pesticides! Keep Out.” It might be expected of a garden founded by a past president of the duPont chemical company.

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The walk to the front entrance of the Buffalo and Erie County Botanical Gardens is lined with flowers from the Proven Winners trials. Photo by Barb Gorges.

On a much smaller scale, the Buffalo and Erie County Botanical Gardens, https://www.buffalogardens.com/, is set in a city park, as is our own Cheyenne Botanic Gardens. Inside the graceful glass domes of its Victorian-era conservatory, the theme is recreating habitats from around the world which share the degree of longitude passing through Buffalo, New York.

The garden was opened in 1900 by horticulturally-minded citizens, including Frederick Law Olmstead, designer of New York City’s Central Park. Its magazine advertises educational, volunteer and membership opportunities.

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The herb garden at Cornell University in Ithaca, New York, is divided into 17 sections including teas, dyes, food, medicinal, spiritual, and even literary references. The walls are made from local rock. Photo by Barb Gorges.

The Cornell Botanic Gardens, www.cornellbotanicgardens.com, part of Cornell University in Ithaca, New York, comes from academic roots, but it also qualifies as aesthetically pleasing. It too has members, volunteers and a calendar of cultural and educational events.

Educational components include:

–The bioswale garden absorbing and purifying water from the parking lot.

–The visitor center’s green roof covered in succulents (the CBG also has a green roof).

–The Climate Change Garden comparing growth on otherwise identical hot and cool plots.

–And like our botanic gardens, a website full of information.

Niagara Parks Botanical Gardens rose garden (left) and butterfly habitat and pavilion (right). Photos by Barb Gorges.

However, in Ontario, Canada, the Niagara Parks Botanical Gardens, https://www.niagaraparks.com/visit/nature-garden/botanical-gardens-2, is more of a tourist attraction. It has the aesthetics and plant labels, but I found no membership or volunteer information. It is home to the Niagara Parks School of Horticulture, where students sign up for a 36-month regimen of labor and coursework.

Bowman’s Hill Wildflower Preserve includes woodland, meadow and wetland habitat, attracting birds. Photo by Barb Gorges.

A better example of a modern botanic garden was Bowman’s Hill Wildflower Preserve https://bhwp.org/, near New Hope, Pennsylvania. Founded in 1934 at the junction of woods, meadows and wetlands, it offers a nursery full of native plants for sale and advertises membership, volunteer and educational programs.

Churchville Nature Center has a wildlife garden demonstrating how to landscape for wildlife: shrubs, trees, flowers and water features. Wild turkeys dropped by. Photo by Barb Gorges.

My favorite garden this trip was the wildlife garden at the Churchville Nature Center, https://www.churchvillenaturecenter.org, outside Philadelphia. Even though the center is municipally-owned like the CBG, there are, like our botanic gardens, membership, volunteer and educational opportunities.

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Inside the Cheyenne Botanic Garden’s new Grand Conservatory tropical plants flourish. The building also includes offices, two classrooms, an orangery and gift shop. The original greenhouse is being remodeled and will continue to provide bedding plants for the city.  Photo by Barb Gorges.

Our own Cheyenne Botanic Gardens compares well with all these gardens: we have an informative website for local gardeners, https://www.botanic.org/, and educational programming including a strong children’s program. The CBG has free admission, even now with the brand-new conservatory, because its city parks-funded budget is augmented by strong membership and volunteer programs.

One unique aspect of the CBG’s mission I didn’t see at any of the gardens I visited is the commitment to service and therapy: “Provides meaningful opportunities for seniors, handicapped and youth-at-risk volunteers who are essential in growing the Gardens.”

With the new conservatory building that opened last summer, the CBG can do even more to fulfill its mission. And you can help. I’ll let you in on two secrets.

One is that if you become a member, there is a reciprocity agreement that allows you to visit many other gardens for free, including the Denver Botanic Gardens. Of course, I spend my savings in the gift shops.

The second secret is that being a garden volunteer is fun. It is something you can’t easily enjoy at faraway gardens, but you can right here at home.

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Gardening education opportunities

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Several of the 100 participants in the 2015 Habitat Hero workshop fill out surveys while waiting for the next speaker to begin. Photo by Barb Gorges.

 

 

 

 

 

 

 

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Also published at Wyoming Network News.

By Barb Gorges

Gardening classes, lectures and conferences are being offered in Cheyenne this winter and spring at Laramie County Community College, Laramie County Public Library and the Cheyenne Botanic Gardens.

LCCC Life Enrichment classes

Catherine Wissner, Laramie County Extension horticulturist, is offering four 2-hour classes on Saturdays, 10 a.m. – noon, $10 each. Sign up for one or more. To get details and register, call 307-778-1236 or go to the Life Enrichment website, lccc.wy.edu/workforce/LifeEnrichment.

Jan. 20 – Organic or All Natural: What Does that Mean? How growers become certified organic and how to be a more informed shopper.

Feb. 10 – Extending the Growing Season – Greenhouses, high tunnels and hoop houses and how to grow inside them.

Feb. 17 – Gardening for Butterflies, Bees and Birds – Design a garden that provides nectar and pollen, seasonal color and improves property value.

Feb. 24 – Garden Success in Laramie County – Learn how to grow vegetables, lawns and trees in our soils and growing conditions.

Laramie County Seed Library Winter Sowing – Jan. 20

Laramie County Library and the Laramie County Master Gardeners offer free seeds at the library for flowers and vegetables that grow well here, and free basic gardening classes.

Jan. 20 – Winter Sowing, 2-4 p.m., Storytime Room (2nd floor), Laramie County Library.

Some plants need cold temperatures, moisture, and natural sunlight cycles to germinate. Laramie County Master Gardener Michelle Bohanan demonstrates starting plants outside, but protected from weather and hungry birds. This method is especially useful for native perennials such as coreopsis, gaillardia, milkweed, and penstemon planted to attract bees, butterflies, and hummingbirds.

Contact: Maggie McKenzie, 307-632-8410.

High Plains Gardening Lecture Series

The Cheyenne Botanic Gardens and the Laramie County Master Gardeners present this lecture series again, but in a new location, the CBGs’ Grand Conservatory, 710 S. Lions Park Dr.

Lectures are at 1 p.m. and are $15 each or $40 for all three. Purchase tickets at the Tilted Tulip, CBG’s new gift shop, Wed.-Sun., 10 a.m. – 5 p.m., or call 307-637-6458.

Jan. 20 – Hummingbird Gardening from Agastache to Zauchneria, Shawn Huddleston.

Feb. 24 – Ruthless Gardening: Tough Love for Better Gardens, Shane Smith, CBG director.

March 24 – Crevice Gardens, Kenton Seth.

High Plains Organic Farming Conference – Feb. 27-28

The 5th annual conference will be held at Laramie County Community College. Registration is $50 and includes lunches. You can register for just one day. See www.highplainsorganic.org for a complete description. Contact Jay Norton jnorton4@uwyo.edu.

Habitat Hero – Bee Bird Friendly – Mar. 17

For the fourth year of Habitat Hero, the Cheyenne – High Plains Audubon Society is teaming with the Wyoming Bee College conference (See https://2018wybeeuniversitybeecollege.eventbrite.com or contact Catherine Wissner, cwissner@uwyo.edu) at Laramie County Community College.

Separate registration for the Mar. 17 Habitat Hero track includes the Wyoming Bee College keynote speaker at 8 a.m., Sarah Red-Laird, Bee Girl organization, and 6:45 p.m. speaker Dr. Raymond Cloyd, “Hollywood and Entomology: History of the 1950s Big Bug Science Fiction Movies.” The full day of Habitat Hero speakers include:

–Jane Dorn, growing native perennials for native bees,

–Barb Gorges, what birds need in your backyard and how to apply to be a Habitat Hero,

–Dena Egenhoff, the Cheyenne Board of Public Utilities’ Habitat Hero garden,

–Jessica Goldstrohm of The Bees Waggle, native bees,

–Wanda Manley, how to manage your piece of prairie.

Registration is $20 and includes snacks and lunch but not dinner. Register at https://www.brownpapertickets.com. Contact Mark Gorges, 307-287-4953, mgorges@juno.com, for more information.

Gardening for Success Conference 2018 – April 14-15

There will be 30 classes to pick from for gardeners of all levels of experience. The conference is put on by Laramie County Master Gardeners, University of Wyoming Extension’s Laramie County office and Laramie County Community College, where the conference will be held.

The $125 registration fee includes meals. See https://gardeningforsuccess2018.eventbrite.com for details and registration or contact Catherine Wissner cwissner@uwyo.edu.

Laramie County Master Gardeners Plant Sale – May 12

Now that the annual plant sale is indoors at the Laramie County Archer Complex, Archer Parkway east of Cheyenne, the plant sale has expanded to include a free series of short gardening lectures.


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Bulb forcing brings spring indoors mid-winter

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This classic bulb-forcing vase holds a hyacinth bulb. Photo by Barb Gorges.

Published Oct. 15, 2017, in the Wyoming Tribune Eagle, “An indoor spring…during the winter.”

By Barb Gorges

It’s the season for buying spring-blooming bulbs. But not all of them need to go in the garden—at least not right away. Some of them can be kept back for forcing.

Bulb forcing allows you to enjoy crocus, the small iris, hyacinth, daffodils and even tulips indoors earlier than they bloom outside. Think of them as a deep winter gift to yourself, or for someone else.

Cheyenne Botanic Gardens director Shane Smith recently gave me background on the practice and a few tips.

The science and history

Smith said the trick is to use bulbs from temperate climates that need winter—such as the bulbs we plant in our gardens for spring bloom. They can get by with a shorter winter, or artificial cooling period, to bloom. Bulb growers in Europe started taking advantage of this about 300 years ago, as relayed by Patricia Coccoris of Holland in her book, “The Curious History of the Bulb Vase.”

The timing

Buy spring-blooming bulbs now. Bulbs ordered from catalogs begin shipping here around the beginning of October because bulbs normally need to be planted outdoors when the soil cools, but before it freezes in December.

For bulb forcing, figure 12 weeks minimum of “cool treatment,” however tulips need 13 weeks or more. Once the minimum is met, you can stagger when you start warming up the bulbs. You can aim for specific bloom times during our cabin fever months, January through March, or maybe even later into spring when we get those depressingly late, tulip-breaking snow storms.

The best bulbs

Smith said he used to tell people to buy the premium-sized bulbs for forcing, but now he thinks he gets more bloom for his buck with the smaller grades of bulbs. Premium hyacinth bulbs go for more than a dollar apiece in the John Scheepers catalog, but you might find smaller bargain bulbs and have more, if only medium-sized blooms, for the same amount.

Smith said some varieties of bulbs are easier to force and bulb catalogs often will mention which ones. Varieties seem to go in and out of vogue so don’t be surprised if Smith’s are hard to find.

Hyacinth is the classic forcing bulb, growing 10-12 inches tall. Each stalk is covered in tiny florets. Smith looks for Pink Pearl, Queen of the Pinks, White Pearl, L’Innocence (white), Blue Jacket, Delft Blue and Blue Giant.

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Crocus-sized bulb-forcing vases are harder to find. Photo by Barb Gorges.

All varieties of crocus force well. Smith’s favorite varieties are Remembrance (purple), Blue Ribbon, Giant Yellow and Jeanne d’Arc (white). Only 4-5 inches tall, they are usually planted as a mass.

Iris reticulata, though related to the summer-blooming bearded iris, grows only 4-6 inches high. Recommended for rock gardens, mine bloomed outside at the end of last February, but it would be nice not to have to brave winter winds to enjoy it. Smith said all the varieties force well. Scheepers lists eight ranging in color from white to blue to deep purple, all marked with a bit of yellow.

Almost any daffodil (narcissus) will work well for forcing, said Smith. The popular Paperwhite narcissus, however, is a tropical bulb, so it doesn’t need cooling.

Tulips, said Smith, are the hardest to force. They need the longest cooling time, minimum 13 weeks. They also may get floppy and need staking. Look for the earliest varieties, those that would otherwise bloom outdoors here (winter-hardiness zone 5) in April.

There are a variety of other, more difficult spring-blooming bulbs to experiment with: snowdrops, grape hyacinth (muscari) and squill (scilla).

Bulb-forcing vases

Bulb-forcing vases are not easy to find this fall. Your best bet is Amazon or eBay. These vases, usually glass, are pinched near the top, providing a cup for the bulb to sit suspended so that only its base touches the water. You watch as the roots grow to fill the rest of the vase and the flower stem sprouts. For this forcing method, you can cool just the bulbs in your refrigerator for the recommended time. Be sure hyacinth bulbs don’t touch produce.

If you are lucky enough to find a bulb forcing vase, remember to change the water regularly.

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These hyacinth bulbs have been potted up and will be set in a 2-foot deep trench in the vegetable garden and mulched with straw or pine needles for their 12-week “cool treatment.”  Small bulbs, like crocus, need a half inch of soil covering them. Photo by Barb Gorges.

Potted bulbs

Smith pots his bulbs. Without a cellar between 35 and 45 degrees, he instead buries the pots in a 2-foot-deep trench in his vegetable garden. He then backfills the trench with straw or pine needles. The mulch allows moisture to percolate down, whether the bulbs are watered by hand or by snow, and allows in air.

Pots can be plastic or clay. However, if you have a fancy one, you may want to use it as a cache pot in which you insert the utilitarian pot that was buried.

Put only one type of bulb in a pot because different types sprout at different rates.

The depth of the pot should allow 2 inches or more of potting soil under the bulb with the bulb tip just a little below the rim of the pot.

Smith said regular packaged potting soil will do. Potting soil can be very dry, so mix it with water in an old dishpan or bucket before spooning it into the pot as the layer that will be under the bulbs. Then set the bulbs on top, right side up. The root end can have bits of root left and the shoot end is usually pointier.

You can pack the bulbs in, nearly shoulder to shoulder, leaving just a little space between them. Then fill in with more potting soil. Smith said the top third of the bulb can be left exposed, but crocus and iris bulbs need to be covered a half inch deep.

Label the pot so you remember what’s in it—especially if you do more than one kind. Mark where you bury the pot. And mark your calendar for when to bring the pot in.

Chill out

While the potted bulbs are chilling in the dark, make sure the soil doesn’t dry out. You may need to lift the mulch and water once a month if it’s a dry winter.

Coming in from the cold

When you bring a pot in, Smith recommends putting it in a dim room at 60 degrees or cooler until the shoots are a few inches tall. Then move it to a bright window and 65 degrees. “Buried to blooming” may take two weeks. Turn pots every day to keep plants growing straight.

Flowers can last a week or two. Once in bloom, you can prolong it by setting the pot farther from the window and keeping the room’s temperature at 65 degrees.

Afterward

The advantage to planting forced bulbs in potting soil is that you can give them a second life. Cut back the spent flowers and keep watering until the leaves turn yellow. Plant the bulbs out in the garden when the soil thaws, where they might bloom again in two years.

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Update March 1, 2018:

The bulbs for the vases were left in the refrigerator for a couple of months to cool and taken out in early January.

Also in early January I brought in the pot of hyacinth and the pot of crocus that were buried in the vegetable garden and covered with a foot of leaf mulch.

The bulbs in vases didn’t do well. They couldn’t seem to grow enough roots. That hyacinth stalk of flowers was about 15 percent the size of the ones in the pot.

I felt sorry for the crocus bulbs in the tiny vases and soon planted them in dirt where they were much happier. That proves you could cool your bulbs in the fridge and then plant them in soil, without wintering them in the garden. But the pot of crocus that did spend two months buried did very well. Interestingly, the yellow crocus bloomed before any of the shades of purple.

I would force bulbs again. If I plant the hyacinth bulbs individually, they would be easier to share with friends, or I could stagger the dates I bring them indoors, prolonging the season of sweet-smelling flowers.

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Iris reticulata bulbs were forced to bloom indoors one spring, then replanted outside in the garden in early summer where they bloomed the next spring. Photo by Barb Gorges.


Vegetable growing advice

 

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Laramie County Master Gardener Kathy Shreve prepares a trench for seeds in a raised bed set up with soaker hoses. Photo by Barb Gorges.

Published in the Wyoming Tribune Eagle June 4, 2017, “Time to get your garden growing.”

 

By Barb Gorges

I spent a recent evening in the garden with Kathy Shreve, Laramie County master gardener, reviewing what to know about local vegetable gardening. The topics mentioned here are covered in greater depth in the “gardening” section of the Cheyenne Botanic Gardens website, http://botanic.org, which also has the link to the archive of my previous columns.

Timing

Wait until the end of May or later to transplant tender veggies like tomatoes, eggplants, cucumbers or put them under a season-extending cover like a low tunnel. You can also plant them in containers you can scoot in and out of the garage.

However, Shreve started cabbage and onion plants indoors and planted them before the snow May 18-19 and they were fine. Some vegetables, like members of the cabbage family, don’t mind cold as much.

While peas, cabbage types, lettuces and other greens, can be planted earlier than the end of May, most vegetable seeds planted directly in the garden prefer warmer soil temperatures. Measure with a soil thermometer found at garden centers.

Shreve said we can plant as late as June 20. Plant fast growing crops as late as July if you want a fall harvest.

Location

Keep in mind the vegetable garden needs a minimum of six hours of sun per day, preferably morning sun.

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Shreve transplants cabbages she started indoors. Photo by Barb Gorges.

Transplants

Because of our short growing season, tomatoes and other tender vegetables are started indoors. Always look for the short season varieties of these plants. Shreve said she looks for 80 or fewer “days to maturity.”

If the plant was not outside when you bought it, it will need hardening off. Start with the plant in the shade for two or three hours and day by day increase the amount of sun and the length of exposure by a couple hours. Keep it well watered.

When transplanting, Shreve advises digging a hole for your plant, filling it with water, then letting it drain before planting.

To remove a plant from a plastic pot, turn it upside down with the stem between your forefinger and middle finger. Squeeze the pot to loosen the soil and shake it very, very gently.

If there are a lot of roots, you can gently tease them apart a bit before putting the plant in the hole.

Hold the plant by the root mass so that it will sit in the hole with the soil at the same level of the stem as it was in the pot. Fill soil in around the roots, then tamp the soil gently.

However, tomatoes can be planted deeper since any part of their stem that is underground will sprout roots, the more the better. In fact, Shreve said to pinch off all but three or four leaves and bury the bare stem.

Lastly, keep plants well-watered, not soggy, while they get established. Wait a couple weeks before adding fertilizer to avoid burning the plants.

Mulch

Shreve mulches with certified weed-free straw available at local feed stores, but grass clippings and last year’s leaves can also be used.

Placing mulch 2 to 3 inches deep keeps the soil from drying so fast, shades out weeds and keeps rain and overhead watering from spattering dirt onto plants, which may spread disease. It can also keep hail from bouncing and inflicting damage twice.

 

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Seed

Root crops, like carrots and beets, don’t transplant well, so you are better off starting them from seed.

While fresh is good, Shreve said she’s had luck with seed seven years old. But the germination rate isn’t going to be great. She might spread carrot seed a little more thickly if that was the case, and it’s easy to thin to the proper spacing (and the thinnings can be tasty).

Because Cheyenne is dry, Shreve plants in a little trench. That way, when moisture comes, it will collect down where the plants are.

Seed packets tell you how deep to plant. The rule of thumb is three to four times deeper than the breadth of the seed. Lay the seed in the bottom of the trench and sprinkle that much dirt on them. Then water well, but gently, so you don’t wash out the seeds. Keep the soil surface moist until the seeds germinate.

Lightly mulch when the seedlings are visible, adding more as the plants get bigger.

Mark rows with popsicle sticks or plastic knives left from picnics.

Water

Once plants are established, let the top 1-2 inches of soil dry out between waterings. Test by sticking your finger in the soil. Water deeply.

Shreve waters every other day using soaker hose and drip irrigation systems, except when it rains. She originally tested her system for 30 minutes to see if water made it to the root depth and decided on 40 minutes.

Water in the morning, or at least make sure leaves are dry before dark.

Bugs and weeds

Mulch should eliminate most of the need to weed. Shreve said to keep up with it—it’s easier to pluck weed seedlings than to have them establish deep roots and go to seed.

For bugs, Shreve said it is easy to Google “what insect is eating my cabbage,” or take the critter, or evidence, to the Laramie County Extension horticulturist, Catherine Wissner. Her office is now out at Laramie County Community College, fourth floor of the new Pathfinder Building.

Never use pesticides until you identify your problem, and then try the least toxic method first. Again, more is not better. Never apply more than the directions indicate.

Slugs—my nemesis—indicate a garden is too wet.

Shreve said to roll newspaper to make 1 to 2-inch-diameter tunnels. Place rolls around affected plants in the evening. By sunrise, the slugs will be inside the rolls to get away from the light and you can dispose of them, rolls and all.

Fertilizer

Never add wood ash or lime to our alkaline soils as those work only on eastern, acidic soils.

Shreve likes slow-release products which are less likely to burn the plants, as are the natural fertilizers. Additionally, compost tea is a good soil conditioner.

Again, more is not better. Shreve uses half of what is directed until she sees how the plants respond.

Over-fertilization of fruit-producing vegetables like tomatoes often keeps them from producing the flowers that become the fruit. Shreve said they need to be stressed a little bit because it gets them thinking about preservation of the species and producing seed, rather than just enjoying life and producing leaves.

“Just leaves” is OK if you are growing leafy vegetables like lettuce, kale, spinach and chard.

Trellis and cage

If you are growing vining vegetables, getting them off the ground means fruits stay cleaner and don’t rot, and they are easier to find and pick. Use old chain link gates, bed springs, or anything else—be creative.

Hog panels make sturdy tomato cages 5 feet high and 2.5 feet in diameter for larger, indeterminate varieties, with chicken wire over the top for hail protection. Otherwise, use jute twine to loosely tie the stem to a bamboo stake.

Add flowers

Adding annual flowers like alyssum, marigolds and sunflowers, or herbs including dill and oregano, attracts pollinators and beneficial insects to your garden.


Soil microbes better than rototilling

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Endomycorrhizal fungi spores are ready to grow into plant roots, carrying nutrients and moisture. Photo courtesy of Jeff Lowenfels.

Published May 7, 2017, in the Wyoming Tribune Eagle, “Soil microbes, no rototilling key to next generation of gardening”

By Barb Gorges

Twice in the space of a month this spring I heard rototilling renounced for the sake of keeping soil microbes healthy.

One speaker was Jeff Lowenfels, garden columnist and author from Alaska who spoke at the Cheyenne Botanic Gardens/Laramie County Master Gardener spring lecture series. The other was Ron Godin, recently retired extension agronomist in western Colorado, speaking at the Wild West Gardening Conference in Cheyenne.

There are a billion microbes in a teaspoon of healthy soil. The interactions of the whole community of microbes is a giant web of who eats whom and who feeds whom.

Basically, decaying plant material feeds microbes and in turn, microbe “excrement” feeds plant roots.

Microbes include nematodes, bacteria, fungi and protozoa. There are some bad actors, but in general, everything balances and plants grow. For example, prairies and forests have self-sustaining soil microbial communities—no synthetic, chemical fertilizers or pesticides are required.

But when European farmers landed in the New World, they opened things up with the plow and have continued to plow ever since. Regular plowing (or hoeing or rototilling) disrupts the soil microbes. They can’t do their jobs. Farmers repaired damage somewhat with applications of manure and compost. But then came the 20th century’s inventive use of nerve gas left over from World War I as insecticide, and leftover nitrogen-based bomb-making materials from World War II became the perfect fertilizer.

Except that it wasn’t healthy for the microbes.

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Ectomycorrhizal fungi grow close to the surface of roots and grow webs around them carrying water and nutrients. Photo courtesy of Jeff Lowenfels.

Synthetic fertilizers starve the microbes in a way and pesticides kill off beneficial organisms, causing the need for a never-ending cycle of synthetic fertilizer and pesticide application. This was great if you owned stock in the large chemical companies, but bad when you understand the side effects including health issues animals and humans—especially farmers, because the chemicals get into drinking water and food.

 

Lowenfels happily dispensed advice on garden chemicals for years until someone sent him two electron microscope photos, one of a fungus that had trapped a root-eating nematode, and the other of a nematode happily chomping a tomato root unimpeded.

In the first photo, the plant was secreting a substance that attracted the fungus, which in turn attacked the nematode. In the second photo, the fungus was missing due to the use of synthetic fertilizers and pesticides.

After his conversion, Lowenfels wrote three books. He said the essential one is “Teaming with Microbes, The Organic Gardener’s Guide to the Soil Food Web,” coauthored with Wayne Lewis. You’ll notice the play on words in the title–healthy soil is teeming with microbes, and you’ll be teaming with them.

Put away the rototiller

First, put away your rototiller. It’s still handy if you are turning your lawn into a pollinator garden, but otherwise, annual rototilling is detrimental to the soil microbe community. Godin said this advice translates to farming as well.

It will take time to undo the cultural tradition of breaking soil down into a fine, clump-less and smooth expanse of dirt. But there are two reasons for disturbing the soil as little as possible, even in a vegetable garden.

First, every time you dig into soil, you bring up weed seeds, most of which require light to germinate. You just made more work for yourself. Cut weeds off at the soil surface rather than digging them.

Second, microbes feeding your plants and fending off bad stuff can’t function if you break them up. Keeping them intact means less work for you, less fertilizer spreading, less watering since healthy soil holds water better. Pesticides are a last resort for serious problems. Re-inoculate your soil with microbes soon after.

In windy Cheyenne, there’s also a third benefit to not tilling your soil into fine dust: microbes “glue” things together and the resulting clumpy soil doesn’t blow away.

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In this electron microscopic view, Glomalin, stained green and coated with spores, is produced by a group of common soil fungi. It coats soil particles like super glue, sticking them together in clumps. Photo courtesy of Jeff Lowenfels.

To plant seeds or transplants, make an opening just large enough. The roots will find their way without the soil being “fluffed.” Healthy soil has lots of air spaces already. Then mulch.

 

Godin’s rule is 100 percent cover, 100 percent of the time. Cover for large gardens or farms could be annual cover crops later mowed to form mulch. In small gardens use leaves, grass clippings and compost.

Replace chemical fertilizers

In the years chemical fertilizers have been around, studies show fruits and vegetables have dropped in nutritional value. It’s due to the missing micronutrients soil microbes used to pull from decomposing plant material and mineral soils. Synthetic fertilizer is incomplete.

Traditional organic gardening recommends digging compost into the soil, but  Lowenfels says digging breaks up the soil community. Better to side-dress plants, leaving the compost (or mulch) on the soil surface where microbes will get at it and break it down. It works on the prairie and in the forest—there’s no 100-year-old pile of dead grass, leaves or pine needles.

Lowenfels said there are three different groups of plants in your yard. Perennial flowers, shrubs and trees want their nitrogen in the form provided by fungally dominated soils. The compost that promotes this is the brown stuff (mixed with a little green): dry leaves, bark, wood chips, twigs, branches—like the forest floor.

Annuals, including vegetables, prefer their nitrogen produced by bacterially dominated soil. This is green stuff (with a little brown), grass clippings, freshly picked weeds (without seeds) and fruit and vegetable kitchen scraps.

The prairie, like your lawn, falls in between. It appreciates finely shredded brown fall leaves and thin layers of green grass clippings.

Brew compost tea

Compost tea, compost soaked in water, is another way to inoculate your garden with microbes and feed them too. If compost and compost tea smell ugly, that’s anaerobic activity. You need aerobic activity—more air.

Lowenfels gives directions for making a bucket into “a simple actively aerated compost tea brewer using aquarium pumps and air stones.” Fertilizing your plants, and yes, your houseplants too, is as easy as watering them.

While chemical companies made their fortunes keeping our soils addicted to their products, new companies are offering to aid us in bringing our soils back to health. They are building better compost tea brewers. Labs can estimate your microbe population. Our local independent garden centers will sell you mycorrhizal fungi in powdered form you mix with water.

This new era of catering to microbes has gone mainstream. Lowenfels reported that at the 2016 Garden Writers of America conference, none of the tradeshow vendors was pushing synthetic fertilizers or pesticides.

For the last 35 years, my husband, Mark, and I have cared for our lawn and garden without a rototiller or synthetic fertilizers and pesticides. We mulch the garden and use natural lawn fertilizers. I look forward to adapting Lowenfels’ ideas to step it up.

[If you are also adapting to the new era in gardening, let me know how it is going. Contact me at bgorges2 at gmail.com.]

More information:

Besides “Teaming with Microbes,” his first book, Lowenfels has also authored:

–“Teaming with Nutrients, The Organic Gardener’s Guide to Optimizing Plant Nutrition”

–“Teaming with Fungi, The Organic Grower’s Guide to Mycorrhizae.”

 


Horticulture careers

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Paul Smith Children’s Village, Cheyenne Botanic Gardens, Cheyenne, Wyoming. Photo by Barb Gorges.

A version published in the Wyoming Tribune Eagle Jan. 22, 2017, was headlined “Find your 1st (or 2nd) career in horticulture.

By Barb Gorges

Have you thought about a career in horticulture?

Last fall, the White House announced the “America the Bountiful Initiative” because the number of students currently studying agriculture is not meeting real world job demand. That in turn is causing potential vulnerability of the food supply which is a national security issue. A U.S. Department of Agriculture study in 2015 showed that 35,400 students graduated with ag-related degrees in a year, short of the 59,000 job openings.

Under the program, government agencies, universities and corporations are encouraged to offer incentives: fellowships, scholarships, traineeships and awards.

Sounds like promising career territory, so let’s look at the aspect of interest to gardeners: horticulture.

Horticulture is partly agriculture and although everyone seems to have a different definition of the distinction, horticulture seems to cover everything that’s not large field grain crops or livestock, but includes flowers and landscape plantings.

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Tyler Mason. Courtesy.

I decided to talk to Tyler Mason, the horticulturist at the Cheyenne Botanic Gardens, to get a better understanding of the field. His career so far exemplifies the possibilities both in educational routes and job opportunities.

Kids will always play in the dirt, but Mason turned that into gardening early on. By age 12 or 13, “I was landscaping for neighbors: mowing, weeding, mulching and planting shrubs. I didn’t think it was work,” he said. Later he began working at a neighborhood landscape nursery.

Mason studied agriculture at Purdue University. “Hort 101,” Mason said, “was the basics of growing plants, pinching, pruning, fertilization, botany.”

He took internships at a retail landscape nursery and scouting for pests for an agronomy company. Then he had an internship at the Purdue Horticulture Greenhouse Gardens (more of a public garden).

After he graduated, he was working in horticultural research at Purdue, but he wanted to work in public gardens and see more of the world. That’s how in 2012 he came to be the assistant education director at the Paul Smith Children’s Village, part of the Cheyenne Botanic Gardens.

Not only was he teaching, Mason was also responsible for the gardening, with the help of volunteers. An affable man, he can inspire both people and plants to do their best. And he’s also full of energy.

In 2014, Mason signed up for a master’s program at Colorado State University through distance education. His thesis was on volunteer management and he finished within two years. During that time, he became the Cheyenne Botanic Gardens’ horticulturist that is responsible for everything that grows outside the conservatory—the planting and care of the whole nine acres of themed gardens located within Lions Park.

But now Mason is about to embark on a different tangent. This month he begins work on his doctorate. This time he will go to school fulltime at CSU. In four years he will become a doctor of horticulture. He will be studying specialty crops grown organically and sustainably.

Specialty crops, Mason said, are essentially all that produce you see at farmers markets minus grains (agronomy), wine grapes (viticulture) and fruits of orchards (pomology).

The Northern Organic Vegetable Improvement Coalition has enlisted northern land grant universities like CSU in researching varieties that do well within the USDA’s specifications for organically grown food. Part of the evaluation is taste. There aren’t many fields of research where you get to eat your subjects.

Which of the many careers in horticulture is Mason looking at when he finishes? Perhaps he’ll be a university extension service vegetable specialist for a state, preferably in the Mountain West, who would consult with growers. Let’s hope he still has time for his own vegetable garden.

Educational routes

The green industry, as it calls itself, employs people with all levels of education and experience.

While Laramie County Community College does not offer a two-year degree in horticulture, it does offer an associate of science degree that includes courses required for a four-year degree at other schools.

Meanwhile, at the University of Wyoming, in the College of Agriculture and Natural Resources, the Plant Sciences Department offers the “Bachelor of Science Degree in Agroecology.” That is the study of more sustainable agricultural practices.

Courses offered include landscape design, plant materials and their propagation, organic food production, turfgrass science and greenhouse design and maintenance.

Other courses, for plant protection, include agronomy, plant genetics, plant pathology and weed science.

CSU is a much larger university and offers more variety in the horticultural field through the College of Agricultural Sciences. It has the Horticulture and Landscape Architecture Department which itself has three areas of emphasis:

–Environmental Horticulture which includes everything to know for landscaping, including business, design, management, nursery and turf management.

–Horticulture includes the horticultural version of business management, food crops, science, and therapy (requiring classes in counseling) as well as floriculture (flowers), viticulture (wine) and enology (wine making).

–Landscape architecture studies the relationship between design, nature and society.

Buried in the online catalog you will find the Organic Agriculture Interdisciplinary Minor, www.organic.colostate.edu, in which one studies organic food and fiber production, composting, diagnostics and treatment, microbiology for sustainable agriculture, organic soil fertilizers, crop development techniques and organic greenhouse production.

Horticultural careers

One doesn’t have to be a horticulturist to work in a horticultural business, though some knowledge of the discipline will help, and eventually rub off on you.

Consider the Cheyenne Botanic Gardens. In addition to the horticulturists and the volunteers who grow the plants under their direction, the public garden has employees covering education, volunteer coordination, office management, community relations, and events management.

There are many categories of horticultural work. In which category will you find your first career, or maybe your second?

————

In December, at www.jobboard.hortjobs.com, there was this list of categories of horticultural positions:

Administration

Arboriculture (trees)

Botanical Gardens

Business Opportunities

Editorial/Media

Education

Environmental Projects

Environmental Restoration

Estate Gardeners

Floral

Fruit and Vegetable

Garden Center

Golf Course

Government, Federal, State and Local

Green Roof

Greenhouse

Grounds Management

Horticultural Science

Integrated Pest Management

Interiorscape (plants indoors)

Irrigation

Landscape

Lawn Care

Medicinals

Nursery

Recreation and Sports

Resort

Sales, Marketing, PR

Seasonal employment

Vegetation Management

Viticulture (grapes)

Zoos and Attractions


Perennial fall flower color

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Yampa River Botanic Park, Steamboat Springs, Colorado, Sept. 8, 2016. Photo by Barb Gorges.

Published Oct. 9, 2016, Wyoming Tribune Eagle, “Fall color for next year’s perennial flowerbeds.”

Find fall color for next year’s perennial flowerbeds (full version)

Text and photos by Barb Gorges

In September, I had the opportunity to visit three public gardens: Chanticleer near Wayne, Pennsylvania; Berkshire Botanical Garden in Stockbridge, Massachusetts; and Yampa River Botanic Park in Steamboat Springs, Colorado.

What struck me was the colorful perennial flowers that were blooming in the fall. Of course, not everything that grows outside Philadelphia grows here in Cheyenne where we are two Plant Hardiness Zones colder, Zone 5.

We match the western Massachusetts mountains for zone, but they get four times our 15 inches of annual precipitation. Plus, they have acidic soils supporting those billowing mounds of hydrangeas I saw everywhere.

Even in Steamboat, only 700 feet higher in elevation, there are plants that require the protection of a thick layer of snow all winter which we don’t have.

So I decided to look around town, especially our own Cheyenne Botanic Gardens, to see what blooms late, for the benefit of bees and our own enjoyment.

Annual flowers are colorful right up to first frost, average date Sept. 20 (though in the last few years in some parts of town it may be as late as mid-October). But unless they self-seed, I can’t justify buying flats of annuals every spring to cover all my garden beds, nor have I the greenhouse to start my own. Instead I turn to perennials. Here are suggestions for you to add to your garden next spring. Or if we haven’t had a frost yet, find them on sale and plant them this fall.

2016-10-1-rudbeckia-by-barb-gorgesI’ve done well with black-eyed Susan, Rudbeckia species. Their golden yellow petals and brown centers must have inspired the University of Wyoming’s selection of school colors. There are many varieties based on native species: short or tall, diminutive or gigantic flowers, mid-summer bloomers or later. Some bloom a long time—over a month. Some are better at coming back year after year.

2016-10-2-aster-by-barb-gorges            My other success has been the fall-blooming asters, Symphyotrichum species. One variety is a 2-foot-tall shrub of lavender-colored, 1-inch flowers. It’s come back every year for over 20 years, waiting until mid-September to bloom. But another, brighter purple aster in a sunnier spot started blooming three weeks earlier and is still blooming well. Perhaps it is a newer variety bred for a longer bloom time than the native plants.

I hesitate to give you actual variety names because nurseries so often move onto the next best thing. You might as well go for what’s available rather than mourn what you can’t find. However, if you are interested in native perennials, check sources like www.alplains.com.

2016-10-3-gaillardia-by-barb-gorges            Blanket flower, Gaillardia species, is another hard-working perennial native to North America. It can start blooming in early summer. Horticulturists have had a field day designing varieties with different color patterns. A member of the aster family, it has petals that can be plain yellow, yellow with bands of red, or nearly all red-orange with a little yellow trim. Some are short, some tall. The seed heads are prickly little balls. If you deadhead them when they are finished blooming, they will put out more flowers. If you don’t, they will drop seeds that will sprout next year, like many other easy-to-grow perennials.

2016-10-4-hollyhock-by-barb-gorges            I’ve noticed that some of my summer bloomers will bloom into fall if I water them enough. I have a bed with a row of hollyhocks growing along the back. It gets watered by a sprinkler head that does a good job at one end but hardly gets water to the other end. Thus, the hollyhocks on the dry end finished blooming a month before the hollyhocks on the wet end.

2016-10-5-salvia-by-barb-gorges            Perennials that bloom in early summer may start blooming again in early fall—perhaps they don’t like hot mid-summer temperatures. I’ve had ‘Hot Pink’ Salvia, Salvia gregii, come back into bloom this year.

Microclimates make a big difference as to when perennials bloom. Nettie Eakes, assistant education director at the Cheyenne Botanic Gardens’ Paul Smith Children’s Village, said visitors are always telling her how the same flower in their yard is either behind or ahead.

The Children’s Village is lucky to be protected by high stone walls. On their north-facing sides, they provide shade and make a cool, slow-growing microclimate. On the south-facing sides, they absorb sunlight and make a warmer, faster-growing microclimate which can also extend the growing season.

2016-10-6-sneezeweed-by-barb-gorges            The most noticeable perennial I found blooming September 18 at the Children’s Village was sneezeweed, Helenium autumnale, a 6-foot-tall plant with multiple small sunflower-type flowers, each with yellow petals and ball-shaped yellow centers. Nettie said they increase by sending out underground stems, but are not very invasive. Helenium comes in many other variations and bloom times.

2016-10-7-giant-hummingbird-mint-by-barb-gorgesOver by the office door, three-foot tall giant hummingbirds mint, Agastache pallida ‘barberi’, does not have shout-out-loud color. But it is a nice contrast: silvery spikes of tiny purple flowers. And maybe it will attract a late hummingbird—or hummingbird moth.

2016-10-8-karl-foerster-grass-by-barb-gorgesAt the front entrance to the Children’s Village is ‘Karl Foerster’ feather reed grass, Calamagrostis acutiflora ‘Karl Foerster’. It’s a go-to plant for landscape designers these days, but that’s because it looks so neat. Growing around four feet tall, it starts out green in summer. Then the seed heads ripen to a golden wheat color. Finally, the whole plant turns gold. It is tough enough to stand and provide color all winter before getting cut back in spring.

2016-10-9-russian-sage-by-barb-gorgesA wispy, shrubby perennial also favored by landscape designers in our area is Russian sage, Perovskia atriplicifolia. Each branch sprouts from ground level, with silvery leaves on the lower half and small blueish lavender flowers on the upper half of each stem. It likes sunny spots and will spread.

Chatting with my Laramie County Master Gardener friends, Steve Scott and Kathy Shreve, I also have this list of fall bloomers for you to think about planting next year:

2016-10-10-autumn-crocus-by-barb-gorgesAutumn crocus, Colchicum species. Corms are planted in July or August. The blossoms are much larger than spring crocus.

Blue sage, Salvia azuria, native to central and eastern North America.

2016-10-11-goldenrod-by-barb-gorgesGoldenrod, Solidago species, blooms are branches of tiny yellow flowers. Many are native to North America.

2016-10-12-joe-pye-weed-by-barb-gorgesJoe Pye weed, Eutrochium species, another North American native, sometime varieties are 5 feet tall, with panicles of purple-pink flowers.

2016-10-17-maxmillian-sunflower-by-barb-gorgesMaxmillian sunflower, Helianthus maximiliani, native to the Great Plains, 2 to 10 feet tall, branches with many yellow flowers.

2016-10-13-purple-coneflower-by-barb-gorgesPurple coneflower, Echinacea purpurea, daisy-like, native to North America, many varieties, 1 to 4 feet tall.

Snakeweed, Gutierrezia species, a shrub with yellow flowers native to western North America.

2016-10-14-rabbitbrush-by-barb-gorgesRabbitbrush, Ericameria nauseousus, or Chrysothamnus viscidiflorus. Both are yellow-flowered shrubs. The native varieties grow on our drier prairies.

2016-10-15-autumn-joy-sedum-by-barb-gorges‘Autumn Joy’ sedum, Sedum telephium, is a stonecrop. The fleshy stems grow 1-2 feet tall, topped with bunches of tiny purple-pink blossoms. It can be found in the Cheyenne Botanic Gardens perennial bed.

2016-10-16-obediant-plant-by-barb-gorgesObedient plant, Physostegia virginiana, looks like a 2 to 4-foot-tall snapdragon with pale lavender-pink flowers. It is also at the Gardens.