Getting it to bloom

Why won't my Sinningia tubiflora bloom? (and how to make it flower)

Also called white sinningia, tube-flowered sinningia (Sinningia tubiflora).

More about sinningia tubiflora

About Sinningia tubiflora

Sinningia tubiflora · also called white sinningia, tube-flowered sinningia · flowering

Sinningia tubiflora is a tuberous South American gesneriad grown for tall stems of fragrant, long-tubed white flowers above soft, hairy green leaves. It spreads by underground tubers, blooms in summer, and dies back to rest over winter. Give it bright indirect light, warmth and steady moisture in the growing season for the heaviest, scented flush.

Plant type: flowering

Watch for — Few or no flowers: Too little light or skipped feeding limits blooming. Move to brighter indirect light and feed with a high-potash liquid every 2-3 weeks in summer.

The reasons sinningia tubiflora isn't blooming

Almost every non-blooming sinningia tubiflora 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 sinningia tubiflora 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 sinningia tubiflora to flower

Maximise sun. Give sinningia tubiflora 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 sinningia tubiflora and get the feeding right with the sinningia tubiflora 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

Sinningia tubiflora 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 sinningia tubiflora care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Sinningia tubiflora blooming — frequently asked questions

Why won't my sinningia tubiflora flower?

Sinningia tubiflora 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 sinningia tubiflora bloom?

Give sinningia tubiflora 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 sinningia tubiflora normally bloom?