About
A spreading, floating, marginal pond plant, native to the UK, but rare, preferring shallow water and boggy areas over mud. It has small, oval, dark green floating leaves in shallow water and narrower, longer leaves in deep water. Small, three-petalled white flowers with yellow centres appear from May to July. Recommended water depth over the crown - 5-10cm (2-4 inches). Can be grown up to a depth of 4m. Suitable for smaller ponds.
About the genus
Luronium is a diverse genus of plants that may be annual, perennial, or woody. Species are cultivated for their flowers, foliage, or architectural habit and are adapted to various climatic conditions
Growing conditions
SunlightFull sun, Partial shade
Soil moisturePoorly-drained
AspectEast-facing, South-facing, West-facing
ExposureSheltered
UK hardinessH6
Plant details
Plant typeAquatic
HabitFloating, Spreading branched
FoliageDeciduous
Spread0.1-0.5 metres
Time to full height1-2 years
Suggested usesCottage and informal garden
Care notes
CultivationGrow in clean, still or gently moving water in bright, indirect light. When planting in growing media, use a nutrient-rich, peat-free mix suitable for aquatic plants. Keep clear of algae, blanketweed or other plants which may crowd out and prevent the Luranium from absorbing light and nutrients. Also thrives in indoor aquariums. See pond plants for further advice
PruningNo pruning required
PropagationPropagate by seed sown in soil which is kept constantly moist, ideally in shallow water, in spring or early summer. Seeds may take several weeks to several months to germinate. Division can be a more reliable way of propagating. Divide healthy, mature plants, ensuring each has a healthy root system, and plant in a similar environment to the parent plant. See pond plant propagation
Pest resistanceGenerally pest-free
Disease resistanceGenerally disease-free