UK compost
What compost for king size scarlet everlasting in the UK?
Xerochrysum bracteatum 'King Size Scarlet'
More about king size scarlet everlasting in the UK
Which compost king size scarlet everlasting needs
For king size scarlet everlasting the mix to buy is peat-free multipurpose compost cut roughly half-and-half with horticultural grit or perlite. Rich soil suppresses flowering in favour of leafy growth. Sandy or gritty loam with good drainage is ideal. Incorporate a little grit into heavier soils at planting to improve drainage. 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 king size scarlet everlasting 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?
King Size Scarlet everlasting 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 king size scarlet everlasting soil & potting-mix guide.
Compost for King Size Scarlet everlasting in the UK — frequently asked questions
What compost should I use for king size scarlet everlasting in the UK?
Use peat-free multipurpose compost cut roughly half-and-half with horticultural grit or perlite. Rich soil suppresses flowering in favour of leafy growth. Sandy or gritty loam with good drainage is ideal. Incorporate a little grit into heavier soils at planting to improve drainage. 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 king size scarlet everlasting?
Not on its own — multipurpose compost holds too much water for king size scarlet everlasting 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 king size scarlet everlasting perfectly well — they dry a little faster at the surface, so check moisture by feel rather than by the look of the top.
Does king size scarlet everlasting need grit or perlite added?
Yes — king size scarlet everlasting 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 king size scarlet everlasting need?
Always a pot with drainage holes. Lean, well-drained sandy or loamy soil, neutral to slightly alkaline. 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 king size scarlet everlasting care
See the full king size scarlet everlasting care guide, its UK watering and UK hardiness.