UK compost
What compost for cryptocoryne nurii in the UK?
Cryptocoryne nurii
More about cryptocoryne nurii in the UK
Which compost cryptocoryne nurii needs
For cryptocoryne nurii the mix to buy is peat-free multipurpose compost. Roots heavily, so use a fine, iron- and nutrient-rich aquarium soil capped with sand, or a soft peat-loam mix emersed. Good root nutrition matters more than water-column dosing for this rooted feeder. 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 cryptocoryne nurii 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?
Cryptocoryne nurii is straightforward: an ordinary peat-free multipurpose compost is right. For a big specimen or a pot it will live in for years, mixing in some loam-based John Innes No.2 or No.3 adds weight and holds nutrients longer. Ericaceous compost is not needed unless a plant is specifically a lime-hater.
For the full recipe, pH and drainage detail (US wording), see the cryptocoryne nurii soil & potting-mix guide.
Compost for Cryptocoryne nurii in the UK — frequently asked questions
What compost should I use for cryptocoryne nurii in the UK?
Use peat-free multipurpose compost. Roots heavily, so use a fine, iron- and nutrient-rich aquarium soil capped with sand, or a soft peat-loam mix emersed. Good root nutrition matters more than water-column dosing for this rooted feeder. 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 cryptocoryne nurii?
Yes. A good peat-free multipurpose compost is exactly right for cryptocoryne nurii. For a large or long-term pot you can mix in some John Innes No.2 or No.3 (loam-based) for extra weight and staying power.
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 cryptocoryne nurii perfectly well — they dry a little faster at the surface, so check moisture by feel rather than by the look of the top.
Does cryptocoryne nurii need grit or perlite added?
Not essential, but a couple of handfuls of perlite in the mix improves aeration and guards against overwatering — useful on a cool, damp British windowsill where compost stays wet longer.
What pot and drainage does cryptocoryne nurii need?
Always a pot with drainage holes. Nutrient-rich aquatic substrate or moist peaty 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 cryptocoryne nurii care
See the full cryptocoryne nurii care guide, its UK watering and UK hardiness.