UK compost
What compost for calathea white fusion in the UK?
Goeppertia lietzei 'White Fusion' (syn. Calathea lietzei 'White Fusion')
More about calathea white fusion in the UK
Which compost calathea white fusion needs
For calathea white fusion the mix to buy is peat-free multipurpose compost cut roughly half-and-half with horticultural grit or perlite. Use a peat-free or coco-coir-based potting mix lightened with perlite and a handful of fine orchid bark for aeration, aiming for a slightly acidic to neutral pH. The blend should hold moisture without becoming waterlogged. Repot every 1-2 years in spring into a pot just 2-3cm larger.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 calathea white fusion 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?
Calathea White Fusion 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 calathea white fusion soil & potting-mix guide.
Compost for Calathea White Fusion in the UK — frequently asked questions
What compost should I use for calathea white fusion in the UK?
Use peat-free multipurpose compost cut roughly half-and-half with horticultural grit or perlite. Use a peat-free or coco-coir-based potting mix lightened with perlite and a handful of fine orchid bark for aeration, aiming for a slightly acidic to neutral pH. The blend should hold moisture without becoming waterlogged. Repot every 1-2 years in spring into a pot just 2-3cm larger. 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 calathea white fusion?
Not on its own — multipurpose compost holds too much water for calathea white fusion 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 calathea white fusion perfectly well — they dry a little faster at the surface, so check moisture by feel rather than by the look of the top.
Does calathea white fusion need grit or perlite added?
Yes — calathea white fusion 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 calathea white fusion need?
Always a pot with drainage holes. Light, moisture-retentive yet free-draining houseplant 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 calathea white fusion care
See the full calathea white fusion care guide, its UK watering and UK hardiness.