perennialN. America Native

Shortleaf Spikesedge

Cyperus brevifolius

The Story

Plant Bio

Cyperus brevifolius, commonly known as shortleaf spikesedge, is a low-growing, rhizomatous perennial sedge native to tropical and subtropical regions worldwide, including the southeastern United States. It forms dense, interconnected mats via creeping pinkish-brown underground rhizomes that root at the nodes, producing upright, slender, triangular stems.

The shiny green, linear leaves are considerably shorter than the flowering stems, with vibrant green new growth emerging in spring. In summer and fall, the stems are topped by compact, egg-shaped, pale green terminal spikelets that contain roughly 100 tiny, wind-pollinated flowers.

Uses & Benefits:

Forms a dense, vibrant green ground cover in wet, low-lying areas where other plants struggle.

Stabilizes wet, poorly drained soils and lowlands through its extensive, interconnected rhizome network.

Provides low-level ground cover and habitat for small ground-dwelling invertebrates.

Essentials

At a Glance

Plant Type

Perennial

Height

16"

Width

36"

Light

Full Sun, Partial Sun

Zones

8, 9, 10

Water

High

Humidity

High

Lifespan

Perennial

Native To

Pantropical

Toxicity

Non-toxic

Bloom period

Summer – Fall

In flower about 6 months of the year

Planting

How to Grow

Select a site in full sun to partial shade with consistently moist to wet soil.
Plant container specimens or plugs directly into wet sand, loam, or clay substrates.
Maintain high soil moisture, as the plant suffers and goes dormant during extended dry periods.
Avoid applying standard lawn fertilizers, which will stimulate the sedge's growth at the expense of surrounding vegetation.

Pro Tip

Manual eradication requires extracting every segment of the creeping pinkish-brown rhizome network; any fragments left behind in the soil will rapidly regenerate.

Keep It Thriving

Care Guide

Do

Keep the soil consistently moist or wet to support healthy growth.
Extract the entire underground rhizome network completely if attempting manual removal.
Grow in containers if you wish to restrict its aggressive, spreading habit.

Don't

Do not allow the soil to dry out completely, as the plant has low drought tolerance.
Do not use standard selective broadleaf herbicides, as they are ineffective and can eliminate competing turfgrass.
Do not leave rhizome fragments in the soil during weeding, as they regenerate rapidly.

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Pest Check
Plant
Propagate
Winter Prep

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Bog gardensWetland restorationMoist ground cover

Companion Plants

Carex pendula Muhlenbergia capillaris

Multiply

Propagation Methods

Good to Know

Common Questions

Shortleaf Spikesedge questions

What zones can Shortleaf Spikesedge grow in?

Shortleaf Spikesedge is hardy in USDA Zones 8–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

When does Shortleaf Spikesedge bloom?

Shortleaf Spikesedge typically blooms in summer through fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Shortleaf Spikesedge need full sun?

Shortleaf Spikesedge does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.