UK compost
What compost for philodendron 'ring of fire' in the UK?
Philodendron 'Ring of Fire'
More about philodendron 'ring of fire' in the UK
Which compost philodendron 'ring of fire' needs
For philodendron 'ring of fire' the mix to buy is peat-free multipurpose compost. Use an airy, fast-draining blend, e.g. equal parts potting soil, coco coir, orchid bark and perlite, ideally with a little horticultural charcoal. The chunky structure keeps oxygen around the roots and prevents the waterlogging that causes root rot.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 philodendron 'ring of fire' 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?
Philodendron 'Ring of Fire' 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 philodendron 'ring of fire' soil & potting-mix guide.
Compost for Philodendron 'Ring of Fire' in the UK — frequently asked questions
What compost should I use for philodendron 'ring of fire' in the UK?
Use peat-free multipurpose compost. Use an airy, fast-draining blend, e.g. equal parts potting soil, coco coir, orchid bark and perlite, ideally with a little horticultural charcoal. The chunky structure keeps oxygen around the roots and prevents the waterlogging that causes root rot. 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 philodendron 'ring of fire'?
Yes. A good peat-free multipurpose compost is exactly right for philodendron 'ring of fire'. 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 philodendron 'ring of fire' perfectly well — they dry a little faster at the surface, so check moisture by feel rather than by the look of the top.
Does philodendron 'ring of fire' 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 philodendron 'ring of fire' need?
Always a pot with drainage holes. Loose, chunky, well-draining aroid 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 philodendron 'ring of fire' care
See the full philodendron 'ring of fire' care guide, its UK watering and UK hardiness.