Plant FinderPlant Finder Graphic
Carex flacca (photo courtesy of Linda Lamb Peters)
Carex flacca (photo courtesy of Linda Lamb Peters)

Click to Enlarge

Zones 3-9, 14-24, 28-41
Partial Sun
Regular Water

Carex flacca

Blue Sedge
Ornamental grasses and grasslike plants


Large group of grasslike, clumping plants found worldwide and grown for foliage effect in borders, rock gardens, containers, and water gardens (flowers are generally insignificant); some are used as lawn substitutes, as large-scale groundcovers, or for erosion control. Long, narrow evergreen leaves are often striped or oddly colored. Specialists offer many varieties. Although characteristically found in damp soils, many sedges will grow under relatively dry conditions in cultivation. Many are short-lived in gardens so are used as annuals.

Carex flacca

From Europe. Many forms of this creeper are in cultivation, ranging from 6 in. to 2 ft. high and wide; foliage may be blue or green. Plant is evergreen only in mildest climates. Not invasive but spreads slowly and can be clipped like a lawn. Endures light foot traffic, moderate shade, competition from tree roots. Tolerates many soils and irrigation schemes; does best with moderate water.

You Might Also Like...

Ampelopsis brevipedunculata

From Asia. Rampant woody vine climbs 20–30 ft. by stem tendrils. Large, handsome, three-lobed, 2...

Polystichum acrostichoides

Native to eastern North America. Grows to 1–1 1/2 ft. tall and about 3 ft. wide. Most useful for...

Catalpa bignonioides

Native to southeastern U.S. Generally smaller than C. speciosa, growing to 30–40 ft. ta...

Find Your Sunset Climate Zone

Find Your Sunset Climate Zone

View Maps Learn More