Repotting guide

When & how to repot Golden Angel's Trumpet (Brugmansia aurea)

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.

Mature size: 3–6 m tall, 2–4 m wide (containers typically 1.5–3 m)

Watch for — Powdery mildew on leaves: Grey-white powdery coating on leaf surfaces indicates powdery mildew, common in warm, dry weather with cool nights — improve air circulation and apply a sulphur-based or potassium bicarbonate fungicide.

How to tell golden angel's trumpet needs repotting

Repotting on a calendar is less reliable than reading the plant. For golden angel's trumpet, watch for these signs:

Thick roots out of the drainage holes, or circling the surface and lifting the plant.
The pot dries out unusually fast and golden angel's trumpet wilts between waterings it used to shrug off.
The plant is visibly top-heavy and tips over easily.
Stalled growth and small new leaves over a full season — though with a big specimen, top-dressing is often the better first response before a full repot.

For the underlying biology of a pot-bound root system and why it stalls a plant, see our guide to spotting and fixing a root-bound plant.

How often to repot golden angel's trumpet

Every 2–3 years; top-dress in the in-between years. Golden Angel's Trumpet's growth habit — fast-growing, upright, woody shrub or small tree; stems become woody with age — sets the pace. 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.

What size pot to step golden angel's trumpet up to

Move up exactly one pot size. A heavy golden angel's trumpet dropped into a vastly bigger pot sits in a reservoir of wet soil its roots cannot reach, which rots them and destabilises the plant. In the years between repots, lift off and replace the top 3–5 cm of soil (top-dressing) instead — it refreshes nutrients without the shock of a full repot.

Not sure of the exact diameter? Our pot size calculator takes the current pot and root spread and tells you the right next size — it deliberately recommends a single step up, never a big jump.

The best time of year to repot golden angel's trumpet

Early spring, just as new growth restarts, is the ideal window for golden angel's trumpet. The plant is moving into its strongest growth phase and re-roots into fresh soil quickly. Avoid repotting in winter dormancy or, for flowering plants, while it is in bud or bloom — recovery is slowest then and you risk dropping the flowers.

Step-by-step: repotting golden angel's trumpet

Consider top-dressing first. If golden angel's trumpet is not badly root-bound, scrape off and replace the top 3–5 cm of soil instead — far less shock for a big plant that hates moving.
Get help and one size up. For a full repot, choose a pot just one size larger. A heavy plant needs two people and a stable, free-draining pot.
Ease it out on its side. Lay the plant down, slide the pot off, and gently loosen the outer roots. Do not bare-root a mature specimen.
Repot at the same depth. Add fresh fertile, moisture-retentive, well-draining loam beneath and around the rootball, keeping the original soil line. Firm it so the trunk is stable and upright.
Water and leave it put. Water thoroughly, then leave golden angel's trumpet in the same spot and light — moving and repotting at once is what makes it drop leaves.

Aftercare

Leave golden angel's trumpet in exactly the same spot and light it was in before — moving and repotting at the same time is what makes a big specimen drop leaves. Water it in well, then let the top of the soil dry before watering again so the larger volume of fresh soil does not stay sodden. Do not fertilise for about 4 weeks — fresh mix already carries nutrients and feeding freshly disturbed roots scorches them.

The right soil mix for golden angel's trumpet

Golden Angel's Trumpet wants fertile, moisture-retentive, well-draining loam. Rich garden loam or peat-free multipurpose compost with 20% perlite added works well. Brugmansia aurea is a heavy feeder and grows poorly in impoverished or compacted soil. Slightly acidic to neutral pH (6.0–7.0) is preferred. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting golden angel's trumpet — frequently asked questions

How often should you repot golden angel's trumpet?

Every 2–3 years; top-dress in the in-between years for golden angel's trumpet. Fully repot golden angel's trumpet only every 2–3 years; in the in-between years just top-dress the top 3–5 cm of soil. Step up one pot size in spring with fertile, moisture-retentive, well-draining loam. It is heavy and hates being moved, and a vastly oversized pot holds water against the roots and rots them.

What size pot does golden angel's trumpet need?

When is the best time of year to repot golden angel's trumpet?

Should you top-dress or fully repot golden angel's trumpet?

For a big, heavy golden angel's trumpet, top-dressing — replacing the top 3–5 cm of soil — is the gentler option most years, with a full repot only every 2–3 years. A mature specimen sulks and drops leaves when fully repotted, so do it as rarely as the roots allow.

Should you fertilise golden angel's trumpet after repotting?

Not immediately. Wait about 4 weeks after repotting golden angel's trumpet. Fresh mix already contains nutrients, and feeding freshly cut or disturbed roots burns them. Resume your normal feeding routine once you see new growth.