Getting it to bloom

Why won't my European Columbine bloom? (and how to make it flower)

Also called European columbine, granny's bonnet, common columbine (Aquilegia vulgaris).

More about european columbine

About European Columbine

Aquilegia vulgaris · also called European columbine, granny's bonnet · flowering

Aquilegia vulgaris is the classic European columbine or granny's bonnet, a cottage-garden perennial with nodding, hooked-spur flowers in blue, purple, pink or white above mounds of ferny blue-green foliage in late spring. Easy and adaptable, it thrives in sun or part shade and most well-drained soils, self-seeding freely to naturalise.

Plant type: flowering

Watch for — Leaf miner: Columbine leaf miners tunnel pale, meandering trails through the leaves. Damage is purely cosmetic; cut foliage to the ground after flowering and the plant regrows cleanly.

The reasons european columbine isn't blooming

Almost every non-blooming european columbine traces back to one of these, roughly in order of how common they are:

Too little sun — most of these need full sun (or very bright light) to flower well; shade gives leaves, not blooms.
Too much nitrogen feed, driving lush foliage at the expense of flowers (very common with general or lawn feeds).
The plant has not been deadheaded, so it stops flowering once it sets seed.
Irregular watering — drought or waterlogging at the budding stage makes buds abort.
It is still too young or was checked by a transplant and is rebuilding before flowering.

Feeding european columbine a high-nitrogen general feed and growing it in too little sun — you get a big leafy plant and almost no flowers.

The fix — how to get european columbine to flower

Maximise sun. Give european columbine the sunniest spot you have — for most bedding and fruiting plants, more direct light directly means more flowers.
Switch the feed. Move off high-nitrogen feeds and use a higher-potassium "bloom" or tomato-type feed as it comes into flower.
Deadhead regularly. Remove spent flowers often to keep it producing more rather than stopping to set seed.
Water consistently. Keep moisture even through budding and flowering — drought-then-flood swings make buds drop.

Light and feeding do most of the heavy lifting here. Dial in the spot with the light guide for european columbine and get the feeding right with the european columbine fertilising schedule — the wrong feed (too much nitrogen) is one of the most common silent reasons a healthy plant makes leaves instead of flowers.

Bloom season and what to expect

European Columbine flowers across its growing season (mostly summer) and, kept fed and deadheaded, can bloom for many weeks or right up to frost.

Post-bloom care so it flowers again

Deadhead, keep feeding lightly, and many will rebloom; collect seed from the best plants at the end of the season if you want to grow them again.

For everything else this plant needs day to day, see the full european columbine care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

European Columbine blooming — frequently asked questions

Why won't my european columbine flower?

European Columbine blooms on the season's growth given enough sun, warmth and the right feed — there is no cold or photoperiod trick, just good growing conditions and a bloom-leaning feed. The most common reason it is not happening: Too little sun — most of these need full sun (or very bright light) to flower well; shade gives leaves, not blooms.

How do I make european columbine bloom?

Give european columbine the sunniest spot you have — for most bedding and fruiting plants, more direct light directly means more flowers. Move off high-nitrogen feeds and use a higher-potassium "bloom" or tomato-type feed as it comes into flower.

When does european columbine normally bloom?