Elodea canadensis
Canadian pondweed
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 A semi-evergreen, aquatic perennial with a cluster of submerged, branched stems clothed with close-set, recurved, dark green leaves
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Size
Ultimate height
0.1–0.5 metresTime to ultimate height
5–10 yearsUltimate spread
0.5–1 metresGrowing conditions
Moisture
Poorly–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Green | |||
| Autumn | Green | |||
| Winter | Green |
Position
- Full sun
Aspect
East–facing or South–facing or West–facing
Exposure
Exposed or Sheltered Hardiness
H5Botanical details
- Family
- Hydrocharitaceae
- Native to the UK
- No
- Foliage
- Semi evergreen
- Habit
- Submerged, Floating
- Genus
Elodea are submerged, aquatic perennials with erect, spreading stems and bright green leaves borne in whorls of three. Tiny, solitary flowers are produced in the leaf axils.
- Name status
Correct
- Plant range
- N America
How to grow
Cultivation
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
Propagation
See cultivation notes Spreads by stem fragments; all plants in the UK are female
Suggested planting locations and garden types
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