Aquilegia vulgaris, commonly known as columbine or granny's bonnet, is a hardy herbaceous perennial native to Europe with delicate, nodding flowers typically in blue, purple, pink, or white. Seeds require a period of cold stratification to overcome dormancy and improve germination rates. This easy-to-grow species readily self-seeds in gardens and is ideal for cottage gardens, borders, and woodland settings.
Before sowing
Cold stratification helps break seed dormancy. Place moist seeds in refrigerator for 3-4 weeks at 0-5°C before sowing. If seeds are slow to germinate indoors, additional cold stratification period improves results.
Sowing
What to expect
Tips
Sow seeds lightly on moist compost surface without burying, as light aids germination. Maintain high humidity by covering tray with polythene or placing in sealed bag. Provide cold period (0-5°C) for 2-4 weeks before moving to warm location (18-21°C). Germination is slow and may take 1-3 months. Keep soil consistently moist but not waterlogged. Once germinated, grow seedlings in cooler conditions. Thin seedlings when large enough to handle. Aquilegia seeds are light-sensitive and should never be completely covered with soil.
Sources: Sarah Raven, RHS Growing Guide, The Seed Collection Australia, Plant Flowers Seeds, Missouri Botanical Garden, Hampshire Seed Company, Gardenia.net, Johnny's Selected Seeds, The Garden of Eaden
