This attractive garden subject is a frost-hardy, low-maintenance plant and will seed itself around the wetter areas of your garden. It forms dense clumps and, given a few years, will create a stunning display in the garden when in flower.

It  should be grown in full sun in compost-enriched soil and ideally should be planted at the edge of a pond or in some other area where the roots are constantly in water. It can also be planted in a pot, submerged in water up to soil level.

The scarlet river lily is fast growing and can be propagated easily from seed or by splitting the clumps. Seeds can be sown during the early months of spring from late August until early November. Seed can be sown directly in the flower bed or in seed trays on a suitable seedling medium and should be kept well watered. The best time to split and transplant plants is from January to April.