Deb Babcock: Perennials for large spaces
Friday, June 1, 2007
Deb Babcock
Deb Babcock's gardening column appears Mondays in Steamboat Today.
Find more gardening columns here.
Steamboat Springs Every year it seems one plant or another just doesn't make it through our Steamboat winter, thus leaving a space to fill in the garden. As you contemplate which plant to bring into your garden to fill a sizeable space, check out these Zone 4 beauties.
- Blue Spires Russian Sage (Perovskia atriplicifolia "Blue Spires") is a spikey, dark-blue perennial that grows to 4 feet tall by 4 feet in diameter. It likes a sunny space and is xeric (requiring very little water once established). As an added bonus, deer and rabbits don't care for this plant.
- Another colorful large-space plant is the Wild Four O'clock (Mirabilis multiflorus) with its magenta-pink flowers (hundreds of them on a mature plant). This plant grows to 18 inches tall by 4- to 6-feet across and likes sunny to partly-sunny areas and is extremely xeric, growing best with minimal irrigation. It, too, is deer and rabbit resistant, but it does attract butterflies.
- Hostas are wonderful for shady spots and will grow up to 4 feet tall by 5 feet wide. There are many varieties to choose from offering colorful foliage in an array of shapes and sizes.
- For a cheerful touch of yellow in a large space, consider Black-eyed Susan (Rudbeckia spp). This sun-loving plant will grow between 2 and 10 feet tall and spread up to 6 feet. It features brightly colored flowers in oranges, reds and golds.
- Anything but a weed, Joe-Pye weed (Eupatorium purpureum macultum) offers gorgeous blooms and striking, large foliage. In the fall, Joe-Pye has attractive, fuzzy seedheads. This plant likes full sun and moist soil. It grows to 7 feet tall and up to 4 feet across.
- Daylilies (Hemerocallis) provide a long bloom season and are available in a wide range of hues. Growing up to 5 feet tall and 1 to 4 feet wide, this plant can thrive in full sun to part shade in moist soil.
- Bush Morning Glory (Ipomea leptophylla) is a not a vine, but a 3-foot tall by 3- to 5-foot wide shrub-like plant growing on a large tuberous root. It blooms with beautiful pink-purple flowers in late summer. Xeric, it likes a sunny location.
- Red Hot Poker (Kniphofia) is a plant found in many gardens throughout the Steamboat area, where it adds a colorful accent with its red and yellow bi-color flower spike. This xeric plant grows to 3 feet tall by 3 feet across and likes a sunny location. It is rabbit and deer resistant as well as a hummingbird attractor.
- No local garden is complete without a penstemon plant, and the Pink Wild Snapdragon (Penstemon palmeri) is one of the few fragrant plants in this species. This plant grows up to 5 feet tall by 2 feet wide and requires sandy or gravelly soil in a sunny location. It is extremely xeric and is attractive to hummingbirds and butterflies.
- As a fragrant butterfly and hummingbird attractor, Beebalm (Monarda) is a great choice for a large space. One plant will grow 3 to 4 feet tall and 3 feet across. There are several hybrids of this plant offering blooms in shades of bright red, pink and white. This plant prefers a sunny to partly sunny location.
As you look for plants to fill large spaces in your garden, be sure to look for the Zone 4 designation, check out how much space the mature plant will need and what kind of environment (sun/shade, xeric/moist) it needs before finalizing your choice.
Deb Babcock is a Routt County resident and a Master Gardener through the Colorado State University Cooperative Extension Service Office in Routt County. Questions? Call 879-0825 or e-mail gardeners@co.routt.co.us.

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