Hayden's Sedge
Carex haydeniana
Last reviewed: August 2026

Toxicity unknown
Hayden's Sedge (Carex haydeniana) 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 shade
Water
medium
Size
8"–24" H × 6"–18" W
Bloom
May, Jun, Jul
Native to
AZ, CA, CO, ID and 5 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
Carex haydeniana is a clumping native sedge that forms neat, compact mounds of narrow green foliage. This drought-tolerant perennial produces small, inconspicuous flowers in late spring through summer and maintains an attractive form throughout the growing season.
In an HOA neighborhood
Hayden's Sedge is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.
Works well in: front yard, foundation, street edge, mid zone.
- May go dormant in extreme drought conditions
Wildlife value
While not a major pollinator plant, this sedge provides habitat structure for beneficial insects and small wildlife. The seeds may attract birds, and the dense foliage offers cover for ground-dwelling creatures.
Common questions
- How much sun does Hayden's Sedge need?
- Hayden's Sedge grows best in part shade conditions.
- When does Hayden's Sedge bloom?
- Hayden's Sedge blooms in May, June, and July.
- Where is Hayden's Sedge native?
- Hayden's Sedge (Carex haydeniana) is native to AZ, CA, CO, ID and 5 more states, per the World Checklist of Vascular Plants (Kew).
- Is Hayden's Sedge HOA-friendly?
- Hayden's Sedge is generally an HOA-friendly choice in the right placement, with low maintenance.
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.
- 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 Hayden's 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