UK compost
What compost for schlumbergera 'white christmas' in the UK?
Schlumbergera truncata 'White Christmas'
More about schlumbergera 'white christmas' in the UK
Which compost schlumbergera 'white christmas' needs
For schlumbergera 'white christmas' the mix to buy is peat-free multipurpose compost cut roughly half-and-half with horticultural grit or perlite. Plant in a light, well-aerated medium such as cactus or orchid mix blended with bark and perlite. Good drainage is essential to prevent root rot, while a little organic matter retains the modest moisture this forest cactus prefers between waterings.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 schlumbergera 'white christmas' 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?
Schlumbergera 'White Christmas' 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 schlumbergera 'white christmas' soil & potting-mix guide.
Compost for Schlumbergera 'White Christmas' in the UK — frequently asked questions
What compost should I use for schlumbergera 'white christmas' in the UK?
Use peat-free multipurpose compost cut roughly half-and-half with horticultural grit or perlite. Plant in a light, well-aerated medium such as cactus or orchid mix blended with bark and perlite. Good drainage is essential to prevent root rot, while a little organic matter retains the modest moisture this forest cactus prefers between waterings. 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 schlumbergera 'white christmas'?
Not on its own — multipurpose compost holds too much water for schlumbergera 'white christmas' 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 schlumbergera 'white christmas' perfectly well — they dry a little faster at the surface, so check moisture by feel rather than by the look of the top.
Does schlumbergera 'white christmas' need grit or perlite added?
Yes — schlumbergera 'white christmas' 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 schlumbergera 'white christmas' need?
Always a pot with drainage holes. Free-draining epiphytic mix with bark, peat-free compost, and perlite. 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 schlumbergera 'white christmas' care
See the full schlumbergera 'white christmas' care guide, its UK watering and UK hardiness.