UK compost
What compost for forsythia 'show off' in the UK?
Forsythia × intermedia 'Mindor'
More about forsythia 'show off' in the UK
Which compost forsythia 'show off' needs
For forsythia 'show off' the mix to buy is peat-free multipurpose compost cut roughly half-and-half with horticultural grit or perlite. Grows in loam, clay, or sand across a broad pH range. Prefers moderately fertile, free-draining ground; tolerant of urban and poor soils but densest and most floriferous where drainage and fertility are reasonable.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 forsythia 'show off' 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?
Forsythia 'Show Off' 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 forsythia 'show off' soil & potting-mix guide.
Compost for Forsythia 'Show Off' in the UK — frequently asked questions
What compost should I use for forsythia 'show off' in the UK?
Use peat-free multipurpose compost cut roughly half-and-half with horticultural grit or perlite. Grows in loam, clay, or sand across a broad pH range. Prefers moderately fertile, free-draining ground; tolerant of urban and poor soils but densest and most floriferous where drainage and fertility are reasonable. 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 forsythia 'show off'?
Not on its own — multipurpose compost holds too much water for forsythia 'show off' 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 forsythia 'show off' perfectly well — they dry a little faster at the surface, so check moisture by feel rather than by the look of the top.
Does forsythia 'show off' need grit or perlite added?
Yes — forsythia 'show off' 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 forsythia 'show off' need?
Always a pot with drainage holes. Adaptable, well-drained soil of any moderate fertility. 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 forsythia 'show off' care
See the full forsythia 'show off' care guide, its UK watering and UK hardiness.