Canadian pondweed

Also known as: 加拿大水草; American waterweed; choke pondweed; ditch moss; little snakeweed; water thyme

This plant is listed on Schedule 9 of The Wildlife (Northern Ireland) Order (1985), as amended, as an invasive non-native species and is banned from sale. See cultivation notes for further details\r\n\r\nA semi-evergreen, aquatic perennial with a cluster of submerged, branched stems clothed with close-set, recurved, dark green leaves

Scientific classification

Species: Canadian pondweed (Elodea canadensis)
Genus: Elodea
Family: Hydrocharitaceae

Information to be completed
Toxicity: Aquatic
Plant type: 0.1-0.5 metres
Height: 0.5-1 metres
Spread: Semi evergreen
Foliage: Submerged
Habit: Spring · Summer · Autumn · Winter
Season of interest: Full sun
Sunlight: Information to be completed
Ideal temperature

Canadian pondweed pictures

Distribution of Canadian pondweed

Distribution map

Northern America

Information to be completed

Culture

Information to be completed

Toxicity

Information to be completed

Quick identification of Canadian pondweed

Information to be completed

Canadian pondweed care guide

Moderate regular watering, avoid prolonged drought or waterlogging
Watering: Full sun
Sunlight: Information to be completed
Ideal temperature

Watering

Moderate regular watering, avoid prolonged drought or waterlogging

Fertilizing

Balanced feed in spring and light repeat in growth season

Pruning

Information to be completed

Propagation

See cultivation notes \r\nSpreads by stem fragments; all plants in the UK are female

Growing

This 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, WALES, NORTHERN IRELAND and the REPUBLIC OF IRELAND. Gardeners possessing them should undertake measures to control them. See RHS advice on invasive non-native species for further information

More growing and care information →