UK compost
What compost for elk horns pig's ear in the UK?
Cotyledon orbiculata 'Elk Horns'
More about elk horns pig's ear in the UK
Which compost elk horns pig's ear needs
For elk horns pig's ear the mix to buy is peat-free multipurpose compost cut roughly half-and-half with horticultural grit or perlite. Mix a commercial succulent or cactus compost with 50–70% coarse perlite, pumice, or horticultural grit. Terracotta pots are strongly recommended to aid moisture evaporation through the pot walls.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 elk horns pig's ear 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?
Elk Horns Pig's Ear 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 elk horns pig's ear soil & potting-mix guide.
Compost for Elk Horns Pig's Ear in the UK — frequently asked questions
What compost should I use for elk horns pig's ear in the UK?
Use peat-free multipurpose compost cut roughly half-and-half with horticultural grit or perlite. Mix a commercial succulent or cactus compost with 50–70% coarse perlite, pumice, or horticultural grit. Terracotta pots are strongly recommended to aid moisture evaporation through the pot walls. 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 elk horns pig's ear?
Not on its own — multipurpose compost holds too much water for elk horns pig's ear 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 elk horns pig's ear perfectly well — they dry a little faster at the surface, so check moisture by feel rather than by the look of the top.
Does elk horns pig's ear need grit or perlite added?
Yes — elk horns pig's ear 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 elk horns pig's ear need?
Always a pot with drainage holes. Sharply draining cactus/succulent mix with 50–70% mineral grit. 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 elk horns pig's ear care
See the full elk horns pig's ear care guide, its UK watering and UK hardiness.