Mud Sedge
Carex limosa
Last reviewed: August 2026

Toxicity unknown
Mud Sedge (Carex limosa) 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 Mud Sedge as toxic to livestock.
Light
part shade
Water
high
Size
4"–12" H × 4"–12" W
Bloom
May, Jun, Jul
Native to
CA, CO, CT, IA and 20 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
Mud sedge is a low-growing wetland grass that forms small, compact clumps in consistently moist to wet conditions. This native sedge produces inconspicuous flower spikes in late spring and summer and requires boggy or waterlogged soils to thrive.
In an HOA neighborhood
Mud 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 very wet conditions that may look swampy
- Too specialized for typical residential landscapes
- May appear sparse or weedy in unsuitable conditions
Wildlife value
This sedge provides habitat and nesting material for wetland birds and supports various insects that depend on native grasses and sedges.
Common questions
- How much sun does Mud Sedge need?
- Mud Sedge grows best in part shade conditions.
- When does Mud Sedge bloom?
- Mud Sedge blooms in May, June, and July.
- Where is Mud Sedge native?
- Mud Sedge (Carex limosa) is native to CA, CO, CT, IA and 20 more states, per vouchered herbarium specimen records and regional native plant society lists.
- Is Mud Sedge toxic to livestock?
- The USDA PLANTS Database does not flag Mud Sedge as toxic to livestock.
- Is Mud Sedge HOA-friendly?
- Mud 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 Mud 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