Evergreen, Colorado, is located in U.S. Department of Agriculture hardiness zones 5 and 6, two of the warmer zones in the state. Gardeners in Evergreen and the rest of the state can pick the same flowers, but in Evergreen the season will be longer and the plants will not need as much winter protection.
Colorado Blue Columbine
Colorado blue columbine (Aquilegia caerulea James) is a member of the buttercup family. The plant grows from 1 to 2 feet tall with blue-white flowers blooming in June, July and August and is found in the woods and meadows throughout Colorado. Plant Colorado blue columbine in full shade and a moist, rocky soil. Insects and hummingbirds will come by for the nectar.
Arrowleaf balsamroot (Balsamorhiza sagittata) is a member of the aster family with arrowhead or heart-shaped leaves that grow to 12 inches long and 6 inches wide. The plant produces stems that grow from 8 to 24 inches tall, each one with a single yellow flower that measures 2 1/2 to 4 inches wide, blooms in May, June and July, and resembles a sunflower. Plant arrowleaf balsamroot in full sun and a moist sandy or gravelly soil.
Buckbush (Ceanothus velutinus Dougl. ex Hook) is also known as mountain balm, snowbrush ceanothus and tobacco-brush and is a member of the buckthorn family. The plant is an evergreen shrub that grows from 3 to 5 feet tall and produces cream-white flowers that grow in clusters from April through August. Plant buckbush in full sun, partial shade or full shade and a soil that is moist to dry. The plant is a favorite of the local butterflies.
Golden-hardhack (Dasiphora fruticosa ssp. floribunda [Pursh] Kartesz) is also known as potentilla and shrubby cinquefoil and is a member of the rose family. The plant grows from 3 to 4 feet high and about the same in width. The plant produces small gray-green leaves and yellow flowers that bloom from July through September. Plant golden-hardhack in full sun and a dry soil. The plant is a favorite stopping-off place for butterflies.
Apache plume (Fallugia paradoxa [D. Don] Endl. ex Torr) is a member of the rose family that grows from 2 to 6 feet tall with leaves that are dark-green on top and silver underneath, white flowers that resemble an apple blossom and grow in clusters from May through December, and fruit that resembles delicate pink-purple feathers. Plant Apache plume in partial shade and a dry soil.