Getting it to bloom

Why won't my Horned violet bloom? (and how to make it flower)

Also called Horned violet, Tufted violet, Horned pansy (Viola cornuta).

More about horned violet

About Horned violet

Viola cornuta · also called Horned violet, Tufted violet · flowering

A long-blooming tufted perennial violet native to the Pyrenees, producing masses of slender-spurred, slightly fragrant flowers in violet, white, or bicoloured forms from spring into summer and often again in autumn. More reliably perennial than common pansies, it spreads gently via creeping stems and thrives at the front of borders or in rock gardens.

Plant type: flowering

Watch for — Summer dormancy and reduced flowering: Flowering declines and plants may go semi-dormant in summer heat. Cut back by one-third after the main flush to encourage compact regrowth and a second flush of blooms in autumn. Plants typically recover well once temperatures drop.

The reasons horned violet isn't blooming

Almost every non-blooming horned violet 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 horned violet 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 horned violet to flower

Maximise sun. Give horned violet 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 horned violet and get the feeding right with the horned violet 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

Horned violet 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 horned violet care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Horned violet blooming — frequently asked questions

Why won't my horned violet flower?

Horned violet 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 horned violet bloom?

Give horned violet 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 horned violet normally bloom?