UK compost
What compost for diascia 'wink coral pink' in the UK?
Diascia × hybrida 'Wink Coral Pink'
More about diascia 'wink coral pink' in the UK
Which compost diascia 'wink coral pink' needs
For diascia 'wink coral pink' the mix to buy is peat-free multipurpose compost cut roughly half-and-half with horticultural grit or perlite. Humus-rich, well-drained soil or quality peat-free compost gives best results. Improve heavy soils with grit; it dislikes both parched dry ground and cold, soggy conditions.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 diascia 'wink coral pink' 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?
Diascia 'Wink Coral Pink' 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 diascia 'wink coral pink' soil & potting-mix guide.
Compost for Diascia 'Wink Coral Pink' in the UK — frequently asked questions
What compost should I use for diascia 'wink coral pink' in the UK?
Use peat-free multipurpose compost cut roughly half-and-half with horticultural grit or perlite. Humus-rich, well-drained soil or quality peat-free compost gives best results. Improve heavy soils with grit; it dislikes both parched dry ground and cold, soggy conditions. 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 diascia 'wink coral pink'?
Not on its own — multipurpose compost holds too much water for diascia 'wink coral pink' 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 diascia 'wink coral pink' perfectly well — they dry a little faster at the surface, so check moisture by feel rather than by the look of the top.
Does diascia 'wink coral pink' need grit or perlite added?
Yes — diascia 'wink coral pink' 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 diascia 'wink coral pink' need?
Always a pot with drainage holes. Fertile, moisture-retentive but free-draining loam or 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 diascia 'wink coral pink' care
See the full diascia 'wink coral pink' care guide, its UK watering and UK hardiness.