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key growing information
Growing Columbine From Seed
How to grow columbine (Aquilegia) from seed: chilling seed, light for germination, starting transplants, shade and soil, winter mulch, and cutting stage.
By Hensley’s Seed Co.
Columbine - Key Growing Information
DAYS TO GERMINATION:
Allow 21–28 days at 70–75°F (21–24°C). Chill the seed in the refrigerator for 5 days before sowing, and give it light, which helps germination. Outdoors, the soil needs to be warmer than 65°F.
SOWING:
Transplants are recommended: sow 8–10 weeks before the last frost and plant out after it. Cover the seed only barely, since light aids germination. Move seedlings into bigger containers or cell packs once true leaves form. For direct sowing, wait until the soil reaches 65°F (18°C), sow groups of 3–4 seeds in the bed, and thin to one plant when true leaves appear. In cold regions, mulch plants after the first frost so freeze-thaw cycles don't heave them out of the ground.
LIGHT PREFERENCE:
Part shade. Full sun works where summers are cool and plants are kept watered.
PLANT HEIGHT:
Varies.
PLANT SPACING:
Space plants 10–15" apart.
HARDINESS ZONES:
Hardy in Zones 3–9.
HARVEST:
Cut when about half the flowers on a stem are open.
SOIL REQUIREMENTS:
Does best in light shade with well-drained soil rich in organic matter; full sun is fine in cool-summer areas if plants are kept watered.
USES:
Cut flowers, beds and borders.
SCIENTIFIC NAME:
Aquilegia spp.
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