Getting it to bloom

Why won't my Cuphea hyssopifolia bloom? (and how to make it flower)

Also called false heather, elfin herb, Mexican heather (Cuphea hyssopifolia).

More about cuphea hyssopifolia

About Cuphea hyssopifolia

Cuphea hyssopifolia · also called false heather, elfin herb · flowering

False heather is a compact evergreen subshrub with fine, glossy needle-like foliage and a constant scatter of tiny lavender, pink or white flowers. Native to Mexico and Central America, it thrives in heat and full sun, working as a tidy low hedge, edging or container plant and blooming almost year-round in frost-free climates.

Plant type: flowering

Watch for — Leaf drop in dry soil: Lets foliage thin and flowering slow if it dries out repeatedly. Keep soil evenly moist, especially in heat and containers.

The reasons cuphea hyssopifolia isn't blooming

Almost every non-blooming cuphea hyssopifolia 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 cuphea hyssopifolia 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 cuphea hyssopifolia to flower

Maximise sun. Give cuphea hyssopifolia 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 cuphea hyssopifolia and get the feeding right with the cuphea hyssopifolia 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

Cuphea hyssopifolia 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 cuphea hyssopifolia care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Cuphea hyssopifolia blooming — frequently asked questions

Why won't my cuphea hyssopifolia flower?

Cuphea hyssopifolia 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 cuphea hyssopifolia bloom?

Give cuphea hyssopifolia 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 cuphea hyssopifolia normally bloom?