Getting it to bloom

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

Also called Western Columbine, Western Red Columbine, Crimson Columbine (Aquilegia formosa).

More about western columbine

About Western Columbine

Aquilegia formosa · also called Western Columbine, Western Red Columbine · flowering

A native North American perennial wildflower producing striking nodding flowers with scarlet spurs and pale yellow petals from spring into early summer. Growing 50–90 cm tall in moist, part-shaded conditions, it is a key nectar source for hummingbirds. Short-lived but self-seeds readily. All parts are toxic; handle with care and keep away from children and pets.

Plant type: flowering

Watch for — Powdery Mildew: A common problem in warm, dry conditions with poor airflow. The fungus appears as white powdery patches on leaves, particularly after flowering. Improve ventilation, avoid overhead watering, and treat with a sulphur-based fungicide if severe.

The reasons western columbine isn't blooming

Almost every non-blooming western 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 western 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 western columbine to flower

Maximise sun. Give western 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 western columbine and get the feeding right with the western 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

Western 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 western columbine care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Western Columbine blooming — frequently asked questions

Why won't my western columbine flower?

Western 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 western columbine bloom?

Give western 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 western columbine normally bloom?