Columbine in Zone 7a & 7b
Aquilegia vulgaris
When to plant columbine in zone 7b
Zones 7a and 7b share the same average frost dates in our data, so this page covers both.
Method: Start indoors: Start indoors from seed, then transplant outside. Columbine needs a head start most zones can't give it by direct-sowing alone.
| Start indoors | Feb 6–Feb 13 |
|---|---|
| Direct sow / transplant outside | Apr 17–Apr 24 |
| Estimated bloom | Apr 16 '28–Apr 23 '28 (~365 days after transplanting) |
Spacing: 1 per square foot (square-foot-gardening spacing). Mature height: 1.5-2.5 ft.
Columbine is a woodland-edge perennial known for its distinctive spurred flowers, which look almost architectural next to most garden blooms. It's an easy, long-lived plant once established, but like a lot of perennials grown from seed, it takes its time getting there.
How columbine fits zone 7's season
Zone 7b's frost-free window runs about 198 days, from April 10 to October 25. Columbine needs about 365 days from transplant to first harvest.
Good companions
No standout companions recorded yet for Columbine.
Where to buy columbine seeds
See why we recommend these suppliers →
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See it growing
Search YouTube for "growing columbine" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)
← Back to the full zone 7b calendar · Full companion planting guide · Full plant profile · Plan your beds in the Garden Designer →
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Growing Columbine in USDA zone 7b: when to start seeds indoors, when to direct-sow, and when to expect a bloom.
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