Fertilising guide
How to fertilise Golden Angel's Trumpet (Brugmansia aurea)— schedule & NPK
Also called Golden Angel's Trumpet, Gold Angel's Trumpet, Borrachero.
More about golden angel's trumpet
About Golden Angel's Trumpet
Brugmansia aurea · also called Golden Angel's Trumpet, Gold Angel's Trumpet · flowering
Brugmansia aurea is a large Andean shrub or tree producing large, pendulous trumpets in golden-yellow to white, with a pronounced evening fragrance. A parent of many popular hybrids, it grows rapidly and flowers prolifically in warm, sunny conditions. All parts are severely toxic. Suited to large containers or frost-free gardens.
Growth habit: Fast-growing, upright, woody shrub or small tree; stems become woody with age
What fertiliser golden angel's trumpet actually wants — and why
Golden Angel's Trumpet is an easy, light foliage feeder — a half-strength balanced liquid feed through the growing months keeps it green without forcing weak, sappy growth.
A balanced general houseplant feed (roughly even N-P-K) is exactly right — it is grown for foliage, so steady, moderate nitrogen for healthy leaves is the goal, not a bloom or root formula.
For the language behind the three numbers on the bottle — what nitrogen, phosphorus and potassium each do — see the NPK ratio explained entry. The short version for golden angel's trumpet: match the feed to the job the plant is doing right now, not to a generic “plant food” on the shelf.
How often to feed golden angel's trumpet, and which months
Feeding only earns its keep while the plant is in active growth and can use the nutrients — pour feed into a dormant or low-light plant and it simply builds up as root-burning salt. For golden angel's trumpet:
Feed every 7–14 days throughout the growing season. Begin with a high-nitrogen balanced feed in spring to drive leaf and stem growth, then switch to a high-potassium formulation (tomato fertiliser) from midsummer to encourage flower bud initiation and development. Cease all feeding in autumn. Treat that as sparingly through the growing season between spring through early autumn (roughly March to September); ease off in autumn and stop entirely in the low light of winter.
The dormant-season rule matters more than the exact interval: skip feeding entirely when golden angel's trumpet is resting. For the wider context on indoor feeding rhythms across the seasons, the houseplant fertiliser schedule walks through the year month by month.
What strength to mix for golden angel's trumpet
Half strength is the safe default for golden angel's trumpet — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
Feeding always goes onto already-damp soil, never dry roots — water golden angel's trumpet first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the golden angel's trumpet watering schedule.
Signs you are over-feeding golden angel's trumpet
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for golden angel's trumpet:
- Brown, crispy leaf tips and edges with no sign of underwatering.
- A white, crusty salt deposit on the soil surface or pot rim.
- Weak, pale, stretched new growth that flops.
- Lower leaves yellow and drop while the soil is correctly watered.
Signs you are under-feeding golden angel's trumpet
- Uniformly pale or yellow-green leaves, oldest first.
- Noticeably small new leaves and stalled growth in good light and season.
- A generally tired, lacklustre look despite correct watering and light.
If the symptoms point at watering, light or roots rather than nutrition, the full golden angel's trumpet care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of golden angel's trumpet with plain water until it runs freely from the base every couple of months in the feeding season — it washes out the fertiliser salts that cause brown tips.
Organic vs synthetic feeds for golden angel's trumpet
Organic options
A diluted seaweed or worm-casting feed, or fish emulsion if you can tolerate the smell indoors. UK: Westland or Baby Bio Organic, dilute seaweed; US: Espoma Indoor! or Neptune's Harvest fish & seaweed. Slow, gentle and hard to overdo.
Synthetic / liquid feeds
A general-purpose houseplant liquid at half strength — UK: Baby Bio, Westland Houseplant Feed or Phostrogen; US: Miracle-Gro Indoor Plant Food or Schultz. Convenient and fast-acting; the only risk is overdoing it.
Brand names are examples, not endorsements, and UK and US ranges differ — check the label’s own NPK and dilution rate, since formulations change.
Fertilising golden angel's trumpet — frequently asked questions
What fertiliser does golden angel's trumpet need?
A balanced general houseplant feed (roughly even N-P-K) is exactly right — it is grown for foliage, so steady, moderate nitrogen for healthy leaves is the goal, not a bloom or root formula. Golden Angel's Trumpet is an easy, light foliage feeder — a half-strength balanced liquid feed through the growing months keeps it green without forcing weak, sappy growth.
How often should I feed golden angel's trumpet?
Feed every 7–14 days throughout the growing season. Begin with a high-nitrogen balanced feed in spring to drive leaf and stem growth, then switch to a high-potassium formulation (tomato fertiliser) from midsummer to encourage flower bud initiation and development. Cease all feeding in autumn. Feed every 7–14 days throughout the growing season. Begin with a high-nitrogen balanced feed in spring to drive leaf and stem growth, then switch to a high-potassium formulation (tomato fertiliser) from midsummer to encourage flower bud initiation and development. Cease all feeding in autumn. Treat that as sparingly through the growing season between spring through early autumn (roughly March to September); ease off in autumn and stop entirely in the low light of winter.
What strength of feed for golden angel's trumpet?
Half strength is the safe default for golden angel's trumpet — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding golden angel's trumpet look like?
Brown, crispy leaf tips and edges with no sign of underwatering. A white, crusty salt deposit on the soil surface or pot rim. Weak, pale, stretched new growth that flops. Lower leaves yellow and drop while the soil is correctly watered. Feeding golden angel's trumpet year-round on a fixed schedule, including dark winter months, is the most common mistake — it cannot use the nutrients in low light and the surplus simply burns the roots and crusts the soil.
Should I flush the soil of golden angel's trumpet?
Flush the pot of golden angel's trumpet with plain water until it runs freely from the base every couple of months in the feeding season — it washes out the fertiliser salts that cause brown tips.
Keep reading
- Golden Angel's Trumpet care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water golden angel's trumpet — the watering schedule
- The houseplant fertiliser schedule — feeding through the year
- NPK ratio explained — what the three numbers on the bottle mean
- How to fertilise corsage orchid
- How to fertilise lady of the night
- How to fertilise cattleya 'why not'
- All 6887 fertilising guides in the Growli library