Getting it to bloom

Why won't my Angel's Trumpet bloom? (and how to make it flower)

Also called Angel's trumpet, Snowy angel's trumpet, Angel's tears (Brugmansia suaveolens).

More about angel's trumpet

About Angel's Trumpet

Brugmansia suaveolens · also called Angel's trumpet, Snowy angel's trumpet · flowering

Angel's trumpet is a fast-growing tropical shrub or small tree prized for huge, pendulous, intensely fragrant trumpet flowers. Give it full sun, rich moist soil, generous feeding, and protection below 10C. Every part is highly poisonous (tropane alkaloids), so the ASPCA and Pet Poison Helpline rate it toxic to pets and people.

Plant type: flowering

Watch for — Failure to flower: Blooms appear only after stems fork into the characteristic Y branching, which needs maturity. Too little sun, too little feed, or over-potting delays flowering — give full sun and regular high-potassium feed.

The reasons angel's trumpet isn't blooming

Almost every non-blooming angel's trumpet 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 angel's trumpet 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 angel's trumpet to flower

Maximise sun. Give angel's trumpet 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 angel's trumpet and get the feeding right with the angel's trumpet 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

Angel's Trumpet 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 angel's trumpet care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Angel's Trumpet blooming — frequently asked questions

Why won't my angel's trumpet flower?

Angel's Trumpet 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 angel's trumpet bloom?

Give angel's trumpet 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 angel's trumpet normally bloom?