Mertens' Sedge
Carex mertensii
Last reviewed: June 2026
Light
part shade
Water
medium
Size
8"–24" H × 6"–12" W
Bloom
May, Jun, Jul
Native to
CA, ID, MT, OR and 1 more states
Browse plants for this ecoregion
Mertens' sedge is a clumping grass-like perennial that forms neat tufts of narrow green leaves. This native sedge thrives in partial shade with moderate water, producing small flower spikes in late spring and early summer. It maintains a tidy, compact appearance throughout the growing season.
In an HOA neighborhood
Mertens' Sedge is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.
Works well in: front yard, foundation, street edge, mid zone.
Wildlife value
This sedge provides habitat and nesting material for small birds and beneficial insects. The seeds offer food for songbirds and small mammals in late summer and fall.
Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Does Mertens' Sedge fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.