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Cut flowers2 varieties
Columbine
Aquilegia spp.Clump-forming perennial with nodding or outward-facing spring flowers, often spurred and bicolored.
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Days to germ.
21–28 daysSpacing
8–10 inHeight
30 inSun
Sun, Partial ShadeHow we grow it
Germination
- Days to germ.
- 21–28 d
- Depth
- 0 in
Culture
- Spacing
- 8–10 in
- Height
- 30 in
- Sun
- Sun, Partial Shade
- Frost
- tender
- Hardiness zones
- 3–9
Harvest
Timing · Zone 5a
JanFebMarAprMayJunJulAugSepOctNovDec
Sow indoorsApr 9
Outdoor / directMay 21 – Jun 18
Windows are anchored to an average last frost of May 21 (1 year in 10 as early as Apr 29, as late as Jun 2) and an average first frost of Sep 18 (1 year in 10 as early as Sep 6, as late as Oct 8). In a late or early year, slide them with it.
Compare in the calendarTrials
Every Columbine sowingSeed sources, counts, ratings, and the observations kept against each one.Columbine trials