Coastal Sedge
Carex exilis
Last reviewed: September 2026

Toxicity unknown
Coastal Sedge (Carex exilis) 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.
Light
part sun
Water
high
Size
8"–24" H × 4"–12" W
Bloom
May, Jun, Jul
Native to
AL, DE, MA, MD and 11 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 areaBrowse plants for this ecoregion
Coastal sedge is a fine-textured native grass that forms small, delicate clumps in wet areas. This slender sedge produces inconspicuous flowers from May through July and thrives in consistently moist to wet soils with partial sun exposure.
In an HOA neighborhood
Coastal Sedge takes more care to keep looking intentional in a front yard. Maintenance level: high. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Requires consistently wet conditions that are impractical in most residential settings
- Very small size makes it appear sparse or incomplete in formal landscapes
- Goes completely dormant in winter leaving bare spots
Wildlife value
While not a major pollinator plant, this sedge provides nesting material and seeds for birds. The dense root system helps stabilize soil and provides habitat for beneficial insects in wetland edges.
Common questions
- How much sun does Coastal Sedge need?
- Coastal Sedge grows best in part sun conditions.
- When does Coastal Sedge bloom?
- Coastal Sedge blooms in May, June, and July.
- Where is Coastal Sedge native?
- Coastal Sedge (Carex exilis) is native to AL, DE, MA, MD and 11 more states, per vouchered herbarium specimen records and regional native plant society lists.
- Is Coastal Sedge HOA-friendly?
- Coastal Sedge takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.
Native range data from vouchered herbarium specimen records and regional native plant society lists. 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.
- It is dying right after planting
- Leaves turning yellow
- Wilting even though I watered it
- Brown crispy leaf tips
- Bugs on the plant
Ready to grow Coastal 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