Getting it to bloom

Why won't my Dog's Tooth Violet bloom? (and how to make it flower)

Also called Dog's Tooth Violet, European Dog's Tooth Violet, Trout Lily (Erythronium dens-canis).

More about dog's tooth violet

About Dog's Tooth Violet

Erythronium dens-canis · also called Dog's Tooth Violet, European Dog's Tooth Violet · flowering

A delicate spring-blooming bulb native to European woodlands, Dog's Tooth Violet produces nodding pink or lilac flowers with reflexed petals in early spring. Plant the distinctive fang-like corms in autumn in humus-rich, well-drained soil beneath deciduous trees. Goes dormant by early summer; pairs beautifully with snowdrops and wood anemones.

Plant type: flowering

Watch for — Failure to flower: Often results from planting corms too shallow (minimum 10 cm / 4 in deep) or disturbance during dormancy. Corms dislike being moved; site them permanently and allow clumps to naturalise undisturbed.

The reasons dog's tooth violet isn't blooming

Almost every non-blooming dog's tooth 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 dog's tooth 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 dog's tooth violet to flower

Maximise sun. Give dog's tooth 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 dog's tooth violet and get the feeding right with the dog's tooth 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

Dog's Tooth 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 dog's tooth violet care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Dog's Tooth Violet blooming — frequently asked questions

Why won't my dog's tooth violet flower?

Dog's Tooth 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 dog's tooth violet bloom?

Give dog's tooth 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 dog's tooth violet normally bloom?