Getting it to bloom

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

Also called Red Angel's Trumpet, Blood-red Angel's Trumpet, Floripondio (Brugmansia sanguinea).

More about red angel's trumpet

About Red Angel's Trumpet

Brugmansia sanguinea · also called Red Angel's Trumpet, Blood-red Angel's Trumpet · flowering

Brugmansia sanguinea is a distinctive Andean species bearing unscented tubular flowers that are vivid orange-red at the tip fading to yellow-green at the base. Uniquely among Brugmansias it prefers cool highland conditions rather than tropical heat. All parts are severely toxic. Suited to cooler gardens or frost-free containers in temperate climates.

Plant type: flowering

The reasons red angel's trumpet isn't blooming

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

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

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

Red Angel's Trumpet blooming — frequently asked questions

Why won't my red angel's trumpet flower?

Red 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 red angel's trumpet bloom?

Give red 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 red angel's trumpet normally bloom?