About
A marginal aquatic perennial with usually arrow-shaped leaves, to 30cm in length, and racemes of whorled white flowers, 4cm across, in summer.
About the genus
Sagittaria can be marginal or submerged aquatic, tuberous perennials or annuals, with linear, lance-shaped or arrow-shaped leaves and panicles of 3-petalled white flowers in summer
Growing conditions
SunlightFull sun
Soil typeClay, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moisturePoorly-drained
AspectSouth-facing, West-facing
ExposureExposed, Sheltered
UK hardinessH6
Plant details
Plant typeAquatic
HabitClump forming
FoliageDeciduous
Height0.5-1 metres
Spread0.1-0.5 metres
Time to full height5-10 years
Suggested usesBorders, containers, naturalising in grass.
Native toS Canada to W South America
Care notes
CultivationThis plant is listed on Schedule 9 of the UK Wildlife & Countryside Act as an invasive non-native species. Although not banned from sale, it is an offence to plant or cause these to grow in the wild IN ENGLAND AND WALES. Gardeners possessing them should undertake measures to control them. See RHS advice on invasive non-native species for further information
PruningMinimal pruning required. Remove dead or damaged growth as needed.
PropagationPlease see cultivation notes
Pest resistanceMay be susceptible to water lily aphids
Disease resistanceGenerally disease-free