UK compost
What compost for plectranthus scutellarioides 'wizard scarlet' in the UK?
Plectranthus scutellarioides 'Wizard Scarlet'
More about plectranthus scutellarioides 'wizard scarlet' in the UK
Which compost plectranthus scutellarioides 'wizard scarlet' needs
For plectranthus scutellarioides 'wizard scarlet' the mix to buy is peat-free multipurpose compost. A good peat- or coir-based mix with organic matter that stays moist but drains freely; slightly acidic to neutral pH (6.0-7.0). Enrich garden soil with compost to support steady growth and colour.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 plectranthus scutellarioides 'wizard scarlet' 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?
Plectranthus scutellarioides 'Wizard Scarlet' is straightforward: an ordinary peat-free multipurpose compost is right. For a big specimen or a pot it will live in for years, mixing in some loam-based John Innes No.2 or No.3 adds weight and holds nutrients longer. Ericaceous compost is not needed unless a plant is specifically a lime-hater.
For the full recipe, pH and drainage detail (US wording), see the plectranthus scutellarioides 'wizard scarlet' soil & potting-mix guide.
Compost for Plectranthus scutellarioides 'Wizard Scarlet' in the UK — frequently asked questions
What compost should I use for plectranthus scutellarioides 'wizard scarlet' in the UK?
Use peat-free multipurpose compost. A good peat- or coir-based mix with organic matter that stays moist but drains freely; slightly acidic to neutral pH (6.0-7.0). Enrich garden soil with compost to support steady growth and colour. 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 plectranthus scutellarioides 'wizard scarlet'?
Yes. A good peat-free multipurpose compost is exactly right for plectranthus scutellarioides 'wizard scarlet'. For a large or long-term pot you can mix in some John Innes No.2 or No.3 (loam-based) for extra weight and staying power.
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 plectranthus scutellarioides 'wizard scarlet' perfectly well — they dry a little faster at the surface, so check moisture by feel rather than by the look of the top.
Does plectranthus scutellarioides 'wizard scarlet' need grit or perlite added?
Not essential, but a couple of handfuls of perlite in the mix improves aeration and guards against overwatering — useful on a cool, damp British windowsill where compost stays wet longer.
What pot and drainage does plectranthus scutellarioides 'wizard scarlet' need?
Always a pot with drainage holes. Fertile, moisture-retentive, well-drained potting mix. 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 plectranthus scutellarioides 'wizard scarlet' care
See the full plectranthus scutellarioides 'wizard scarlet' care guide, its UK watering and UK hardiness.