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Canadian Waterweed

Elodea canadensis

In the Carolinas and Georgia, found in rivers, lakes, ponds, stagnant waters of streams. Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition What its natural habitat tells you

20
Good

Native to Arkansas. How scores work Is it native here?

Profile 94%

Height
3 inches
Spread
1–3 feet
Light
Partial shade, Full sun
Soil moisture
Standing water

Space about 2 ft apart from its recorded spread, about 25 per 100 sq ft. Enter your bed size for a count

Will it fit your yard?

At a glance

Life cycle
Perennial
Bloom
July to September
Fruiting season
Summer to fall

Not yet recorded · Leaves

Recorded in 7 Arkansas counties.

Natural habitats

Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.

1 of 2

Streams, rivers and their banks

Flowing water and its banks, bars and rocky shoals.

Ponds, lakes and their shores

Still water and its edges: ponds, lakes, millponds and reservoirs.

All habitats

Also found with this plant

Wildlife whose habitat models include habitats this plant grows in, in Arkansas. Shared habitat, not food. 138 animals.

All wildlife of Arkansas

Ecological relationships

Who uses this plant?

What these records mean

1CaterpillarsGenus host records with ranges including AR

Genus host records with ranges including AR · Elodea

  • Elophila obliteralisWaterlily Leafcutter Moth
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
0BeesSoutheastern regional records
0Specialist beesPollen specialists
4BirdsRecorded genus food-resource interactions; not a state feeding claim

Recorded genus food-resource interactions; not a state feeding claim · Elodea

  • Aythya marilaGreater Scaup
  • Cygnus buccinatorTrumpeter Swan
  • Cygnus olorMute Swan
  • Falcipennis canadensisSpruce Grouse
Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)

Direct food only: birds recorded eating this genus across North America. Caterpillars on host plants also feed nesting birds. NC Native Plant Society: butterfly gardening

No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects

Growing and identification

Plant details

Family
Hydrocharitaceae
Hardiness
Zones 4–10
Flower color
White
Growth rate
Rapid
Growth habit
Several stems
Foliage color
Gray-green
Fruit begins
Summer
Fruit ends
Fall

Safety has not been reviewed for this plant; check toxicity and thorns before planting.

Growing sources and scope
Also known as

Canadian Water Weed

Conservation status

Arkansas rankSNR
Global rankG5
AR statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

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Sources