Getting it to bloom

Why won't my Cutleaf Fleabane bloom? (and how to make it flower)

Also called Cutleaf Fleabane, Compound Fleabane, Cut-leaved Daisy (Erigeron compositus).

More about cutleaf fleabane

About Cutleaf Fleabane

Erigeron compositus · also called Cutleaf Fleabane, Compound Fleabane · flowering

Cutleaf Fleabane is a compact, cushion-forming native perennial from alpine and subalpine habitats of western North America. Its finely divided, three-lobed leaves form neat rosettes topped with white, lilac, or pale yellow daisy flowers in summer. An excellent rock garden and trough plant, it demands sharp drainage and full sun to replicate its mountain home.

Plant type: flowering

The reasons cutleaf fleabane isn't blooming

Almost every non-blooming cutleaf fleabane 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 cutleaf fleabane 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 cutleaf fleabane to flower

Maximise sun. Give cutleaf fleabane 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 cutleaf fleabane and get the feeding right with the cutleaf fleabane 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

Cutleaf Fleabane 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 cutleaf fleabane care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Cutleaf Fleabane blooming — frequently asked questions

Why won't my cutleaf fleabane flower?

Cutleaf Fleabane 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 cutleaf fleabane bloom?

Give cutleaf fleabane 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 cutleaf fleabane normally bloom?