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Blunt Spikerush

Eleocharis obtusa, Cyperaceae

Zones
4–10
Layer
Ground Cover
Lifespan
Perennial
Growth
Moderate

Guild Roles

Ground CoverBeneficial Insect Habitat

Growing Conditions

Sun

Full Sun (preferred)Partial Shade (tolerated)

Water

High (established)High (seedling)

Soil pH

6 – 8

Tolerances

Drought
Frost
Heat
Pest Resistance
Disease Resist.

Companion Plants

Erect NutgrassCyperus rotundus var. erectus
Beneficial Insect HabitatNutrient Accumulation
Blue RushJuncus inflexus
Beneficial Insect HabitatNutrient Accumulation

Antagonistic Plants

Denudata BambooFargesia denudata

Bamboo clumps create dense shade and root competition that inhibits small spike rush growth

Needle RushJuncus roemerianus

Black needle rush may produce allelopathic compounds that inhibit other wetland species

Uses

Functions

Wetland RestorationWater FiltrationErosion ControlPond Margins

Edible Parts

Tubers

Common Questions

What zones does Blunt Spikerush grow in?

Blunt Spikerush grows in USDA hardiness zones 4 through 10.

What are good companion plants for Blunt Spikerush?

Good companions for Blunt Spikerush include Erect Nutgrass, Blue Rush.

Design guilds with Blunt Spikerush and see companion relationships visually.

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