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Canadian Waterweed

Elodea canadensis, Hydrocharitaceae

Zones
3–10
Layer
Aquatic
Lifespan
Perennial
Growth
Fast

Guild Roles

Ground Cover

Growing Conditions

Sun

Partial Sun (optimal)

Water

High

Soil pH

6.5 – 8

Tolerances

Drought
Frost
Heat
Pest Resistance
Disease Resist.

Companion Plants

Marsh SeedboxLudwigia palustris
Nutrient AccumulationBeneficial Insect Habitat

Antagonistic Plants

Eurasian WatermilfoilMyriophyllum spicatum

Both compete intensely for light and nutrients in aquatic systems, with Myriophyllum often outcompeting native Elodea

HornwortCeratophyllum demersum

Hornwort releases allelopathic compounds and competes for light, often suppressing other submerged plants

Uses

Functions

OxygenationWater Filtration

Common Questions

What zones does Canadian Waterweed grow in?

Canadian Waterweed grows in USDA hardiness zones 3 through 10.

What are good companion plants for Canadian Waterweed?

Good companions for Canadian Waterweed include Marsh Seedbox.

Design guilds with Canadian Waterweed and see companion relationships visually.

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