Skip to main content

Leafy Tussock Sedge

Carex aquatilis

Last reviewed: August 2026

Carex aquatilis is a tussock-forming sedge that thrives in wet meadows, streambanks and marshes, producing narrow greenish flower spikes from May through July.

Leafy Tussock Sedge (Carex aquatilis)
Photo: (c) mark-groeneveld, some rights reserved (CC BY), uploaded by mark-groeneveld

Toxicity unknown

Leafy Tussock Sedge (Carex aquatilis) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

The USDA PLANTS Database (opens in new tab) does not flag Leafy Tussock Sedge as toxic to livestock.

Light

part sun

Water

high

Size

12"–36" H × 12"–24" W

Bloom

May, Jun, Jul

Native to

AZ, CA, CO, CT and 27 more states

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.

Find rebates in your area

Leafy tussock sedge is a clumping wetland grass that forms dense, upright tufts of narrow green leaves. This moisture-loving perennial produces small, inconspicuous flower spikes in late spring and summer. It goes dormant in winter, leaving tan-colored foliage that can be cut back in early spring.

Growing Leafy Tussock Sedge

Grow Leafy Tussock Sedge in part sun and high water. Mature plants reach 12 to 36 inches tall and spread 12 to 24 inches wide. Expect moderate maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

Leafy Tussock Sedge takes more care to keep looking intentional in a front yard. Maintenance level: moderate. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

  • Requires consistently wet conditions that may appear unkempt
  • Dormant winter appearance looks messy
  • Too informal and wild-looking for most front yard applications

Wildlife value

This sedge provides nesting material and cover for waterfowl and other wetland birds. The seeds are eaten by various songbirds and waterfowl.

Common questions

What growing conditions does Carex aquatilis need?
This sedge grows best in consistently wet to saturated soils in part sun to part shade, often along stream banks, pond margins and wet meadows.
When does Carex aquatilis bloom?
It typically flowers from May through July, producing slender greenish brown spikes typical of the sedge family.
Does Carex aquatilis attract pollinators?
Like most sedges, Carex aquatilis is wind pollinated and does not depend on insects to set seed.
Is Carex aquatilis good for erosion control?
Its dense tussock form and fibrous roots help hold saturated soil in place, making it useful along streambanks and wet ditches.
Is Leafy Tussock Sedge toxic to livestock?
The USDA PLANTS Database does not flag Leafy Tussock Sedge as toxic to livestock.
Is Leafy Tussock Sedge HOA-friendly?
Leafy Tussock Sedge takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.

Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

Ready to grow Leafy Tussock Sedge? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

Planning a bed around it? Start a free plan with this plant

Not sure where to start? Take the 2-minute yard quiz