UK compost
What compost for forrest ginger lily in the UK?
Hedychium forrestii
More about forrest ginger lily in the UK
Which compost forrest ginger lily needs
For forrest ginger lily the mix to buy is peat-free multipurpose compost cut roughly half-and-half with horticultural grit or perlite. Rich garden loam with added leaf mould or well-rotted compost is ideal. Good drainage prevents rhizome rot while retaining the moisture this species needs during the growing season. pH 6.0-7.0 is suitable.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 forrest ginger lily 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?
Forrest Ginger Lily 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 forrest ginger lily soil & potting-mix guide.
Compost for Forrest Ginger Lily in the UK — frequently asked questions
What compost should I use for forrest ginger lily in the UK?
Use peat-free multipurpose compost cut roughly half-and-half with horticultural grit or perlite. Rich garden loam with added leaf mould or well-rotted compost is ideal. Good drainage prevents rhizome rot while retaining the moisture this species needs during the growing season. pH 6.0-7.0 is suitable. 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 forrest ginger lily?
Not on its own — multipurpose compost holds too much water for forrest ginger lily 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 forrest ginger lily perfectly well — they dry a little faster at the surface, so check moisture by feel rather than by the look of the top.
Does forrest ginger lily need grit or perlite added?
Yes — forrest ginger lily 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 forrest ginger lily need?
Always a pot with drainage holes. Fertile, moisture-retentive but free-draining loam. 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 forrest ginger lily care
See the full forrest ginger lily care guide, its UK watering and UK hardiness.