States
North CarolinaTennesseeGeorgiaSouth CarolinaKentuckyAlabamaFloridaVirginia
Menu

Canadian Waterweed

Elodea canadensis

Found in rivers, lakes, ponds, stagnant waters of streams. FloraQuest, phone app (app page) What its natural habitat tells you

20
Good

Native to Virginia. 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 43 Virginia counties.

Natural habitats

Places it grows wild. Not a planting requirement.

1 of 2

Streams, rivers and their banks

Watauga Falls
Named place / source context. Shown: Watauga Falls, North Carolina, a neighboring state.Watauga Falls, Illustrator/engraver not confidently attributed; reproduced in Zeigler and Grosscup, The Heart of the Alleghanies (1883), 1883. Public domain. Source record.

Ponds, lakes and their shores

Yellow butterwort beside a moss-hung coastal pond
Regional / representative. Shown: Southern coastal pond margins, Florida and Louisiana to North Carolina; state not identified, a neighboring state.Yellow butterwort beside a moss-hung coastal pond, Marian Ellis Rowan, 1901. Public domain. Source record.

Also found with this plant

Wildlife whose habitat models include habitats this plant grows in, in Virginia. Shared habitat, not food. 131 animals.

All wildlife of Virginia

Ecological relationships

Who uses this plant?

What these records mean

1CaterpillarsGenus host records with ranges including VA

Genus host records with ranges including VA · 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
  • Bloom · “July to September” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) (ranked first; USDA PLANTS differs) · Carolinas and Georgia
  • Flower color · “White” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Foliage color · “Gray-green” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Fruit begins · “Summer” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Fruit ends · “Fall” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Growth habit · “Several stems” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Growth rate · “Rapid” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Hardiness · “Zones 4–10” · Missouri Botanical Garden Plant Finder
  • Height · “3 inches” · Missouri Botanical Garden Plant Finder
  • Life cycle · “Perennial” · Lady Bird Johnson Wildflower Center
  • Light · “Partial shade; Full sun (documented habitat)” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) · Carolinas and Georgia
  • primary_flower_color · “white” · USDA PLANTS
  • Soil · “Water (documented habitat)” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) · Carolinas and Georgia
  • Spread · “1–3 feet” · Missouri Botanical Garden Plant Finder
Also known as

Canadian Water Weed

Conservation status

Virginia rankS4
Global rankG5
VA statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

Will it fit your yard?

Check this plant against your county, sun and soil moisture. Conditions are checked in your browser.

Choose a county to begin.

How to check your spot

Sources