UK compost
What compost for double angel's trumpet in the UK?
Brugmansia suaveolens 'Plena'
More about double angel's trumpet in the UK
Which compost double angel's trumpet needs
For double angel's trumpet the mix to buy is peat-free multipurpose compost cut roughly half-and-half with horticultural grit or perlite. Use a nutrient-rich peat-free compost with 20–25% perlite for container culture. Top-dress with slow-release granular fertiliser in spring. In the ground, enrich with well-rotted compost or manure. pH 6.0–7.0. Repot every spring into a container one size larger until in a final large pot of 50–60 litres.In British garden centres the bagged growing medium is sold simply as “compost” (multipurpose, ericaceous, or loam-based John Innes), which is a different thing from the rotted garden “compost” you make in a heap — for a pot you want the bagged kind.
Peat-free compost
Buy peat-free. The sale of peat compost to home gardeners is being phased out across the UK, and the RHS recommends peat-free on environmental grounds. A good peat-free multipurpose grows double angel's trumpet perfectly well; the one habit to change is watering — peat-free dries faster at the surface while still moist below, so check by feel a knuckle deep rather than trusting the look of the top.
Ericaceous or multipurpose?
Double Angel's Trumpet does not want a rich, water-holding compost — it wants sharp drainage. Cut peat-free multipurpose roughly half-and-half with horticultural grit, sharp sand or perlite, and always pot into a container with drainage holes. A "cactus and succulent" bagged mix is a ready-made shortcut.
For the full recipe, pH and drainage detail (US wording), see the double angel's trumpet soil & potting-mix guide.
Compost for Double Angel's Trumpet in the UK — frequently asked questions
What compost should I use for double angel's trumpet in the UK?
Use peat-free multipurpose compost cut roughly half-and-half with horticultural grit or perlite. Use a nutrient-rich peat-free compost with 20–25% perlite for container culture. Top-dress with slow-release granular fertiliser in spring. In the ground, enrich with well-rotted compost or manure. pH 6.0–7.0. Repot every spring into a container one size larger until in a final large pot of 50–60 litres. In UK garden centres this is sold simply as "compost" — the bagged growing medium, not garden-made leaf-mould — so match the description above rather than a brand.
Can I use ordinary multipurpose compost for double angel's trumpet?
Not on its own — multipurpose compost holds too much water for double angel's trumpet and will rot the roots. Cut it roughly 50:50 with horticultural grit, sharp sand or perlite so it drains fast.
Should the compost be peat-free?
Yes. Sales of peat compost to home gardeners are being phased out in the UK, and the RHS recommends peat-free for environmental reasons. Modern peat-free multipurpose composts grow double angel's trumpet perfectly well — they dry a little faster at the surface, so check moisture by feel rather than by the look of the top.
Does double angel's trumpet need grit or perlite added?
Yes — double angel's trumpet must have sharp drainage. Add about one part horticultural grit or perlite to one part compost, and always use a pot with drainage holes.
What pot and drainage does double angel's trumpet need?
Always a pot with drainage holes. Rich, humus-rich, free-draining container compost. Stand it on a saucer, empty any water that collects after watering, and never leave the pot sitting in a full outer cover — waterlogged compost in a cool UK room is the commonest cause of root rot.
More double angel's trumpet care
See the full double angel's trumpet care guide, its UK watering and UK hardiness.