About
A floating aquatic perennial with rounded leaves 3cm across, and white flowers 2-3cm across, with a yellow spot on each petal.
About the genus
Hydrocharis can be submerged or floating aquatic perennials with glossy, rounded leaves and white, 3-petalled flowers in summer
Growing conditions
SunlightFull sun
Soil typeChalk, Clay, Loam, Sand
Soil pHAlkaline
Soil moisturePoorly-drained
AspectSouth-facing, West-facing
ExposureExposed, Sheltered
UK hardinessH5
Plant details
Plant typeAquatic
HabitFloating
FoliageDeciduous
HeightUp to 10 cm
Spread0.5-1 metres
Time to full height5-10 years
Suggested usesPonds, water features, bog gardens.
Care notes
CultivationGrow in still, alkaline water in full sun. Water must be deep enough to prevent bottom freezing to protect overwintering buds. See pond plants for further advice
PruningNo pruning required
PropagationPropagate by seed or division of stolons
Pest resistanceMay be susceptible to water snails and larvae of the brown china-mark moth
Disease resistanceGenerally disease-free