Getting it to bloom

Why won't my Didissandra uniflora bloom? (and how to make it flower)

Also called single-flowered didissandra (Didissandra uniflora).

More about didissandra uniflora

About Didissandra uniflora

Didissandra uniflora · also called single-flowered didissandra · flowering

Didissandra uniflora is a Southeast Asian gesneriad, a perennial lignescent herb with a slightly woody, erect to trailing stem and opposite, softly hairy ovate leaves. Like its rainforest relatives it wants warm, humid, shaded conditions and an open, free-draining mix. It bears whitish, often violet-tinged tubular flowers and is grown chiefly by gesneriad enthusiasts.

Plant type: flowering

Watch for — Failure to flower: Often insufficient light or erratic feeding. Provide steady bright-indirect light and a balanced dilute feed in the growing season.

The reasons didissandra uniflora isn't blooming

Almost every non-blooming didissandra uniflora 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 didissandra uniflora 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 didissandra uniflora to flower

Maximise sun. Give didissandra uniflora 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 didissandra uniflora and get the feeding right with the didissandra uniflora 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

Didissandra uniflora 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 didissandra uniflora care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Didissandra uniflora blooming — frequently asked questions

Why won't my didissandra uniflora flower?

Didissandra uniflora 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 didissandra uniflora bloom?

Give didissandra uniflora 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 didissandra uniflora normally bloom?