We’re all familiar with the iconic red geranium in a window box or flowerpot. While they live on indefinitely in warmer climates, a hard freeze turns the succulent stems into mush. However, there is a whole group of other geraniums that are completely hardy here in Colorado. Not only are they perennials, they’re also well-behaved, drought tolerant, have neat, attractive, compact foliage, and beautiful flowers. Interested?
Tag: perennial
Hardy Ice Plant
Covering the ground with a solid mass of eye-searing fuchsia-purple flowers, Hardy Ice Plant (Delosperma cooperi) demands a second look. The succulent green leaves glimmer in the sun, giving the plant its common name, while the flowers have glistening thin petals surrounding a yellow center.
Waves of bloom carpet the foliage from late spring until late summer. The show even continues in winter, when plants turn a deep burgundy-red. Other species of Delosperma, with yellow or salmon-pink flowers, are also now available. Some have earned PlantSelect® honors.
Thanksgiving Mums
Happy Thanksgiving! The table is set and the aroma of roasting turkey fills the air. You hear the doorbell and go to answer it. Sure enough, your dinner guests have arrived bearing pumpkin pies, hearty appetites… and a potted chrysanthemum.
Familiar as corsages and potted gift plants, chrysanthemums are the iconic fall bloomer. Available in a wide range of colors, from white through yellows to reds, pinks and purples, there is a shade for every garden. Orange, russets and golds are particularly appropriate for this time of year. Forms vary just as much. Spider mums have long petals forming shaggy heads, while others resemble simple daisies. Most garden varieties have double flowers such as the ones pictured here. All in all, the US National Chrysanthemum Society recognizes thirteen bloom types. The flowers are supported by stiff stems approximately two feet high and adorned with elongated heart-shaped gray-green leaves with uneven edges.
New England Asters
Everyone loves daisies, so it’s no wonder that New England Asters (Symphyotrichum novae-angliae) are so popular. Bright purple (or pink or white) daisies with contrasting golden yellow centers adorn these shrubby perennials from August until October. Growing to four feet high and wide, the plants tend to sprawl unless staked, especially in very fertile soil or partial shade. Stems bear long, lance-shaped leaves of dull green.
‘Red Rocks’ Penstemon
An inconspicuous, low-growing mound of evergreen leaves for most of the year, ‘Red Rocks’ takes center stage in mid-summer, with 18-inch spikes of bright pink, bell-shaped flowers. The first penstemon chosen for inclusion in the PlantSelect® program, ‘Red Rocks’ was added in 1999. It’s a cross between a showy Mexican species and a hardy Colorado native, combining the best features of both its parents. ‘Red Rocks’ is named after the park west of Denver.
Do You Have a Bleeding Heart?
Has the fat little cherub with the bow and arrow left you lonely this Valentine’s Day? If no one will be sending you roses, why not buy yourself a Bleeding Heart?
Bleeding Heart (Dicentra spectabilis) is an old-fashioned perennial aptly named for the row of heart-shaped flowers that dangle along each wiry flower stalk. Airy leaves in sprays reminiscent of a coarse fern appear in early spring, rising on stems that form a clump that can reach two to three feet, given the right conditions.
Be a Garden Tourist
Where does a gardener want to go on vacation? Probably somewhere with a beautiful public garden or two.
I make a point of visiting Colorado’s inspiring public gardens. I’ve written about many of them already, and I’m always searching out new ones. There we can see plants adapted to our area and get new ideas for our own yards. Once there, I invariably start making notes, taking photos, and mentally redesigning my perennial border. It’s fun, but not exactly relaxing.
When I visit gardens in other parts of the country (or the world), it’s a totally different experience. Instead of relating everything back to my own landscape, I unwind and just enjoy the gardens for what they are.
Cupid’s Dart (Catananche caerulea)
Description
Cupid’s Dart comes to Colorado from Europe, where its historical role as an ingredient in love potions gave rise to its common name. Clumps of slender gray-green leaves grow about a foot tall and wide. Wiry stalks extend past the foliage, supporting a myriad of striking periwinkle-blue flower heads, each set off by papery bracts behind the petals. If left to mature, the two inch blooms turn into attractive seed heads that last all winter.
Foxglove ‘Spanish Peaks’
(Digitalis thapsi)
With one- to two-foot spikes of raspberry-pink flowers over a tidy mat of fuzzy foliage, perennial foxglove ‘Spanish Peaks’ isn’t your typical foxglove. Instead of the cool humidity of the British Isles, this hybrid is specifically recommended for Colorado gardens, doing well in our arid and unpredictable climate. As a result, it was named a Plant Select winner in 1999. The cultivar’s name reflects both the plant’s Spanish origins, and it’s suitability to Colorado, home of the Spanish Peaks.
Although attractive to bees and hummingbirds, ‘Spanish Peaks’ is usually disliked by rabbits and deer—probably due to its poisonous foliage. (The drug digitalis comes from plants in this genus.)
Planting Done Right: Part 1
Shrubs, Perennials and Ornamental Grasses
It’s spring. I’ve been digging in the garden—at least between snow storms. My back muscles (and knees and shoulders) ache, there’s dirt under my broken fingernails, and a huge smile on my face. In fact, there’s dirt in my teeth—I’ve been pulling weeds and shaking the soil off their roots before piling them into the compost bucket, and I keep forgetting to close my lips.
One of the joys of spring is adding new plants to our garden. What gardener can resist the dazzling displays at the garden center? Forgetting about budgets and the size of our yards, we load up the cart. Then we get home and the work begins. It’s time to start digging holes.
Mountain Plover 