Lake Sedge

Carex lacustris, Cyperaceae

Zones

3–8

Layer

Ground Cover

Lifespan

Perennial

Growth

Moderate

Guild Roles

Ground CoverMulch MakerBeneficial Insect HabitatWindbreak

Growing Conditions

Sun

Full Sun (preferred)Partial Shade (tolerated)

Water

High (established)High (seedling)

Soil pH

5.5 – 8.5

Tolerances

Drought

Frost

Heat

Pest Resistance

Disease Resist.

Companion Plants

Wild MintMentha arvensis

Nutrient AccumulationBeneficial Insect Habitat

Shrubby CinquefoilDasiphora fruticosa

Wind ProtectionBeneficial Insect Habitat

Antagonistic Plants

Yellow SedgeCarex flava

Lake sedge is highly competitive and can dominate wetland sites, excluding smaller sedge species

LeatherleafChamaedaphne calyculata

Aggressive lake sedge can dominate wetland margins and exclude woody shrubs like leatherleaf

Awl-fruited SedgeCarex stipata

Both sedges compete intensively for wetland resources with similar root zones and growth habits

Uses

Functions

Wetland RestorationErosion ControlWater FiltrationWildlife Habitat

Edible Parts

SeedsRoots

Medicinal Uses

Urinary Tract Support

Common Questions

What zones does Lake Sedge grow in?

Lake Sedge grows in USDA hardiness zones 3 through 8.

What are good companion plants for Lake Sedge?

Good companions for Lake Sedge include Wild Mint, Shrubby Cinquefoil.

Design guilds with Lake Sedge and see companion relationships visually.

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