Creeping Mahonia

mahonia-aquifolium-compacta_oregon-grape_dbg-co_lah_4128When you have a smaller yard, you want every plant to earn its keep. With fragrant yellow flowers, blue berries, and green leaves that turn purple in winter, Creeping Mahonia (aka Oregon Grape, Mahonia repens) definitely deserves a spot!

These are low-growing plants, about 12” to 18” tall, with underground stems (stolons) that spread up to three feet in width.  Spring brings an abundance of small, deep yellow flowers, attractively set off by the dark green leaves. By late summer, these mature into clusters of small, dusty-blue berries that are sour but edible. (A similar species, M. haematocarpa, has red berries). The holly-like foliage persists into winter, turning a lovely plum with the advent of cold weather.

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Gardens Fit for Royalty

royalbotanicgardens-sydney-nsw-australia_lah_7215

One of the joys of traveling is that you can visit gardens in other parts of the world—places with different climates growing plants totally unlike those in we have here in Colorado. I just returned from a long overseas trip that included visits to botanic gardens in both Australia and Singapore. Talk about different! On the one hand, the tropical blossoms and exotic ferns were a delight to the senses. On the other hand, there is no way I could ever grow any of them at home, except as houseplants. And even then, our low humidity would discourage most of these species.

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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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