Getting it to bloom

Why won't my Three-leaved Lantana bloom? (and how to make it flower)

Also called Three-leaved Lantana, Lavender Popcorn Lantana, Popcorn Lantana, Shrub Verbena (Lantana trifolia).

More about three-leaved lantana

About Three-leaved Lantana

Lantana trifolia · also called Three-leaved Lantana, Lavender Popcorn Lantana · flowering

Lantana trifolia is a tropical shrub native to Central and South America and Mexico, distinguished by leaves that grow in whorls of three and elongated clusters of small lavender flowers that ripen into distinctive popcorn-like spikes of purple berries. It grows vigorously in full sun and average, well-drained soil, tolerating heat and brief drought once established. Its ornamental berry spikes make it particularly attractive to birds and it is widely used in subtropical and tropical gardens. Toxic to cats, dogs, and horses.

Plant type: flowering

The reasons three-leaved lantana isn't blooming

Almost every non-blooming three-leaved lantana 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 three-leaved lantana 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 three-leaved lantana to flower

Maximise sun. Give three-leaved lantana 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 three-leaved lantana and get the feeding right with the three-leaved lantana 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

Three-leaved Lantana 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 three-leaved lantana care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Three-leaved Lantana blooming — frequently asked questions

Why won't my three-leaved lantana flower?

Three-leaved Lantana 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 three-leaved lantana bloom?

Give three-leaved lantana 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 three-leaved lantana normally bloom?