Blue Sedge (Carex firma (Carex glauca))-Hort Answers - University of Illinois Extension
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University of Illinois Extension

Hort Answers

Ornamental Grass

Blue Sedge
Carex firma (Carex glauca)

Blue Sedge <em>Carex firma</em>
Blue Sedge Carex firma

Fine textured blue-gray foliage that is semi evergreen. The slow spreading plant can form a mat. Flowers in July are insignificant

This is a running cool season sedge. Creeps very slowly.

Prefers moist, fertile soil in a sunny site but will tolerate drought. 

'Blue Zinger' 10-12" tall blue foliage with a cascading habit that makes a good dense groundcover.

'Bias' 12-14" tall foliage variegated on one side.

Mature Height
6-24 Inches
USDA Hardiness Zone
5 - 9 
Soil Conditions
Moist, Well-Drained
Exposure/Light Requirements
Full Sun
Partial Sun/Shade
Foliage Color
Pests and Problems

Environmental Damage

Additional Notes
Tolerant of a variety of soil conditions, but looks best with regular watering. Forms a mat over time and will compete well with tree roots. Cut back old foliage in spring to force new growth. Not a true grass.


Related Resources
Home, Yard & Garden Pest Guide
Illinois Commercial Landscape and Turfgrass Pest Management Handbook
U of IL - Distance Diagnosis through Digital Imaging
U of IL - Plant Clinic