Getting it to bloom

Why won't my Lanceleaf Coreopsis bloom? (and how to make it flower)

Also called Lanceleaf tickseed, Sand coreopsis (Coreopsis lanceolata).

More about lanceleaf coreopsis

About Lanceleaf Coreopsis

Coreopsis lanceolata · also called Lanceleaf tickseed, Sand coreopsis · flowering

Lanceleaf coreopsis is a hardy North American native perennial bearing bright golden-yellow daisies on wiry stems through early to midsummer. Drought-tolerant, pollinator-friendly, and easy in poor soils, it self-sows freely and naturalises in meadows and borders. ASPCA-listed as non-toxic to cats and dogs (Coreopsis spp.).

Plant type: flowering

Watch for — Reduced rebloom: Shear spent flowers back after the first flush to prolong bloom and tidy the clump.

The reasons lanceleaf coreopsis isn't blooming

Almost every non-blooming lanceleaf coreopsis 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 lanceleaf coreopsis 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 lanceleaf coreopsis to flower

Maximise sun. Give lanceleaf coreopsis 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 lanceleaf coreopsis and get the feeding right with the lanceleaf coreopsis 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

Lanceleaf Coreopsis 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 lanceleaf coreopsis care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Lanceleaf Coreopsis blooming — frequently asked questions

Why won't my lanceleaf coreopsis flower?

Lanceleaf Coreopsis 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 lanceleaf coreopsis bloom?

Give lanceleaf coreopsis 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 lanceleaf coreopsis normally bloom?