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Black Edge Sedge

Carex nigromarginata

Last reviewed: June 2026

Black Edge Sedge (Carex nigromarginata)
Photo: Nathan Aaron / Wikimedia Commons (CC BY 4.0)

Light

part shade

Water

low

Size

6"–18" H × 6"–12" W

Bloom

Apr, May, Jun

Native to

AL, AR, CT, DE and 19 more states

Black edge sedge is a compact evergreen sedge that forms neat clumps with dark green leaves edged in black. It produces inconspicuous flowers in spring and maintains its attractive foliage year-round in shaded areas.

In an HOA neighborhood

Black Edge 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 seeds for birds and nesting material, while its clumping structure offers shelter for small wildlife in shaded garden areas.

Common questions

How much sun does Black Edge Sedge need?
Black Edge Sedge grows best in part shade conditions.
When does Black Edge Sedge bloom?
Black Edge Sedge blooms in April, May, and June.
Where is Black Edge Sedge native?
Black Edge Sedge (Carex nigromarginata) is native to AL, AR, CT, DE and 19 more states, per the USDA PLANTS Database and regional native plant society lists.
Is Black Edge Sedge HOA-friendly?
Black Edge Sedge is generally an HOA-friendly choice in the right placement, with low maintenance.

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.

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

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