Dazzling Dahlias

Dahlia hyb_HudsonGardens-LittletonCO_LAH_9265

At this time of year, most plants are bent on making seeds, not blossoms. Not so the dahlias. Among the blowsy seedheads and fading foliage, their vibrant colors declare that the season isn’t over yet.

My parents retired to Mendocino, on the coast north of San Francisco. There, the cool but mild climate is similar to that of England, and dahlias (indeed, most perennials) thrive. Those my dad grew were as big as dinner plates! I admit to jealousy. Here in Colorado, it’s not so simple; you have to want to grow dahlias. Spectacular flowers in flamboyant hues are your reward.

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Watering Trees

dead tree_COS_PLH_3The tree had clearly expired. What leaves remained had turned a sickly yellow-brown, and hung limply on the branches—in mid-August! Yet, when our neighbors planted it last year it had been perfectly healthy. Something was obviously wrong, and I had a hunch I knew what. (I’ve often said that master gardeners kill just as many plants, we just know why they died.)

Surreptitiously moving the cobblestone mulch aside (and wondering if the homeowner was watching through the closed curtains), I looked at the drip irrigation set-up. There was only one emitter, and it was directing water right to the base of the trunk. No wonder the tree was dead! (That and the fact that it was planted too deeply; there’s no sign of the root flare.)

close-up tree irrigation wrong_COS_PLH_1

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Garden Advice: Re-using Tea Bags

20160406_095352It seems such a waste—we use a tea bag to make a lovely cup of tea, and then toss it into the trash. It just screams to be repurposed—surely there’s some way to get some extra use from that depleted bag! So it’s no big surprise that the internet is suddenly full of lists with titles such as “7 Random Uses for Used Tea Bags.”

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Dressing Plants for Winter

We’re turning on the heat, unpacking our winter sweaters, and looking up our favorite soup recipes. And if we’re gardeners, we may be figuring out the best way to protect our plants for winter. Lately I’ve been seeing ads for rose collars and burlap wraps. Should I buy some?

Many hybrid roses are grafted onto rootstocks bred for hardiness, not pretty flowers. It’s imperative to protect that graft union in very cold weather. If the top half of the plant dies, the roots will send up shoots next spring—we won’t be aware that anything is wrong until our petite pink rose suddenly grows into a huge sprawling shrub with ugly white flowers.

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Autumn Crocuses for a Season Finale

Colchicum hyb_Autumn Crocus_DBG_LAH_3082When we think of crocuses, we imagine the first flowers of spring, daring the cold and snow to herald the coming change of seasons. And just as crocuses start the growing season, they can also be among the final flowers of fall. You may know them as Meadow Saffron or Naked Ladies (although that name also belongs to Amaryllis belladonna)—these goblet-shaped pink–to-purple flowers that spring leafless from the ground in early autumn. They don’t last long, only two or three weeks, but their presence when all else is fading makes them worth the effort.

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Garden Advice: Using Salt in the Garden

no saltOne of my perverse pleasures is perusing Pintrest to find bad garden advice. There’s certainly no lack of misinformation on the web, and Pintrest seems to collect it all. Most advice is simply a waste of time and money—sprinkling Epsom salts on your plants, spraying weeds with vinegar, pouring beer on your lawn. They don’t help, but they won’t kill your plants either. However, yesterday I came across a recommendation that will seriously damage your garden. I was so horrified that I immediately sat down to write this post.

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Applauding Leadplant

Amorpha canescens_Leadplant_DBG_LAH_0251

Sometimes I think of leadplant (Amorpha canescens) as the ugly duckling of xeric shrubs. It’s just not appreciated. Consider this quote from the Missouri Botanic Gardens (MBG) webpage:

A somewhat ordinary looking, small shrub with an attractive bloom but otherwise with no particularly outstanding landscape features. Good plant for naturalizing in a native or wildflower garden, prairie or meadow.

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Villainous Voles

640px-Microtus_pennsylvanicus_illustration
By Author: Bailey, Vernon, 1864-1942; Merriam, C. Hart (Clinton Hart), 1855-1942; United States. Division of Biological Survey – Revision of American voles of the genus Microtus (1900) https://archive.org/details/revisionofameric17bail, Public Domain, https://commons.wikimedia.org/w/index.php?curid=37187840

In last month’s post on “Who Ate My Plants?” I described the following scenario:

The heavy snowfall took a while to melt, but finally your dormant lawn emerges from under its frozen blanket. Last time you saw it, it was perfect turf, smooth and even. But now, it looks as if an army had performed maneuvers across your yard! Shallow furrows run here and there around islands of still-intact grass. What in the world?!

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Fabulous Four O’clocks

Mirabilis multiflora - Desert Four O'clock @XG 9aug05 LAH 080 printIn a field crowded with contenders, I have a new favorite wildflower. This plant is incredible—large, flashy, tough, gorgeous. What more could you want? Best of all, it’s thriving in my yard. I’m in love.

Most four o’clocks are sedate, old-fashioned garden flowers, something you’d see surrounding a cottage, combined with hollyhocks, old roses, and other grandmotherly plants. The Desert Four O’clock (Mirabilis multiflora) is like the grandma who dies her hair brilliant pink, wears short skirts with black fishnet stockings, and rides a Harley.

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