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Big-leaf Sedge

Carex amplifolia, Cyperaceae

Zones
5–9
Layer
Herbaceous
Lifespan
Perennial
Growth
Moderate

Guild Roles

Dynamic AccumulatorMulch MakerGround Cover

Growing Conditions

Sun

Partial Shade (preferred)Full Shade (tolerated)

Water

High (established)High (seedling)

Soil pH

5 – 7.5

Tolerances

Drought
Frost
Heat
Pest Resistance
Disease Resist.

Companion Plants

Asian skunk cabbageLysichiton camtschatcensis
Pollinator SharingPest Deterrent

Antagonistic Plants

Lamance IrisIris brevicaulis

Large sedges with broad leaves can shade out iris plants and compete strongly for root space in wetland soils

Pale SpikerushEleocharis macrostachya

Large sedges can shade and outcompete smaller spike-rush species in wetland environments

Uses

Functions

Water FiltrationErosion ControlHabitat CreationRain Garden Plant

Common Questions

What zones does Big-leaf Sedge grow in?

Big-leaf Sedge grows in USDA hardiness zones 5 through 9.

What are good companion plants for Big-leaf Sedge?

Good companions for Big-leaf Sedge include Asian skunk cabbage.

Design guilds with Big-leaf Sedge and see companion relationships visually.

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