Rocky Mountain columbine. Large flowers with long-spurred petals in white, crimson, purple, and yellow. Many flowers are two-colored.
Perennial, zone 3-8
Germination Temperature:Optimum soil temperatures 65-70ºF
Seed Planting Depth: Sow on the surface and press into soil. Cold treatment aids germination
Starting Indoors: Start indoors 8-10 weeks before the last frost.Cold treat seed by sowing into moist soil or paper towel, wrap in a clear plastic bag, and place in the refrigerator for 2-3 weeks. Provide 65-70ºF soil temperature. Transplant apart after the last frost, 10-12” apart.
Sowing Outdoors:Direct sow in spring or fall, 5-7 seeds every 6”
Growth Habit:Upright, bushy
Height and Width:24-36" x 12-18"
Light Needs: Full sun to part shade
Soil Needs:Average to rich, moist, well-drained
Approximate days to flower from seed: Blooms in the second season
Uses: Flower beds, shade gardens, containers, cut flowers, attracts beneficials
Care: Water seedlings regularly until established. Amend soil with compost before transplanting. Remove faded flowers to encourage more blooms. Self seeds.