Description of Nymphaea 'Martha'

Nymphaea 'Martha' is a hardy water lily grown for semi-double pink flowers and an easy, pond-friendly habit. It grows from a rhizome and builds floating pads that provide shade through summer. Most listings use the cultivar name Martha without an extra common name. Reliable detail outside nursery descriptions is limited, so it suits gardeners who prefer simple, practical expectations.

Appearance

Martha produces rounded pads that sit flat on the surface and form a tidy raft once established. Flowers are described as sugar-pink to mid pink with a clear yellow centre, and semi-double petals give a fuller look than a simple star bloom. Many sellers describe it as free flowering, which usually means repeat buds through summer in good sun. In bright light the colour looks clearer, while in light shade it softens.

Care Guide

Give Martha full sun and calm water. Plant it in a wide basket with loam based compost and cap with washed gravel. Lower the basket in stages and keep it at a typical hardy depth once established, adjusting so pads reach the surface comfortably. If you are unsure, start around 30–45 cm and lower gradually once growth is strong. Feed with aquatic fertiliser tablets through summer. Remove old leaves and spent flowers to keep the plant open and reduce debris. It is hardy, so overwinter it below ice level.

Suitability for Garden Ponds

Martha suits small to medium ponds where you want a softer pink flower and a plant that settles without fuss. The pads give shade for fish and help reduce glare. Because independent measurements for spread vary, treat it as a medium plant and give it space, then control it with pot size and division if it starts to crowd. It also works well in a large container pond where you can manage the growing area. A wide basket helps Martha spread evenly and usually improves flowering. In ponds with fish, a gravel cap helps stop compost being disturbed around Martha. If Martha makes lots of leaves but few flowers, feeding often helps more than changing depth. If Martha makes lots of leaves but few flowers, feeding often helps more than changing depth. If Martha makes lots of leaves but few flowers, feeding often helps more than changing depth. Clear floating debris so buds on Martha can rise and open cleanly at the surface. If Martha makes lots of leaves but few flowers, feeding often helps more than changing depth.