UK compost
What compost for shingle plant hoya in the UK?
Hoya imbricata
More about shingle plant hoya in the UK
Which compost shingle plant hoya needs
For shingle plant hoya the mix to buy is peat-free multipurpose compost cut roughly half-and-half with horticultural grit or perlite. Being an epiphyte that grows on bark, it hates dense, water-retentive compost around its roots. Use an open, airy blend such as roughly equal parts orchid bark, perlite and a little peat-free houseplant compost or coco coir, so water drains fast and the roots stay aerated. Always pot into a container with drainage holes; some growers mount it on bark or grow it on a flat support to mimic its natural shingling habit.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 shingle plant hoya 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?
Shingle Plant Hoya 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 shingle plant hoya soil & potting-mix guide.
Compost for Shingle Plant Hoya in the UK — frequently asked questions
What compost should I use for shingle plant hoya in the UK?
Use peat-free multipurpose compost cut roughly half-and-half with horticultural grit or perlite. Being an epiphyte that grows on bark, it hates dense, water-retentive compost around its roots. Use an open, airy blend such as roughly equal parts orchid bark, perlite and a little peat-free houseplant compost or coco coir, so water drains fast and the roots stay aerated. Always pot into a container with drainage holes; some growers mount it on bark or grow it on a flat support to mimic its natural shingling habit. 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 shingle plant hoya?
Not on its own — multipurpose compost holds too much water for shingle plant hoya 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 shingle plant hoya perfectly well — they dry a little faster at the surface, so check moisture by feel rather than by the look of the top.
Does shingle plant hoya need grit or perlite added?
Yes — shingle plant hoya 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 shingle plant hoya need?
Always a pot with drainage holes. Very free-draining, chunky epiphytic 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 shingle plant hoya care
See the full shingle plant hoya care guide, its UK watering and UK hardiness.