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Carex flaccosperma

thinfruit sedge add to wishlist

Plant types and subtypes: Ground Covers, Grasses, Sedges, Evergreens, Ornamental Grasses

Light Requirements: part-shade, shade

Water Use: medium

Soil Moisture: dry, moist, wet

Soil Description: acid, rich, average, loam, clay

Height: 6"-12"

Bloom Time: May, June

Bloom Color: green

Leaf Color: blue-green

Hardiness Zone: 5, 6, 7, 8, 9

Additional Tags: clumping, colonizing, deer resistant, evergreen, mat-forming, naturalizing, ornamental foliage, shade garden plant

Carex flaccosperma (thinfruit sedge)
  • Carex flaccosperma (thinfruit sedge)
  • Carex flaccosperma (thinfruit sedge)
  • Carex flaccosperma (thinfruit sedge)

Pricing & Availability


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Carex flaccosperma

Also known as:

thinfruit sedge


blue wood sedge

Scientific Synonyms:


Carex flaccosperma is also known as blue wood sedge, due to its powdery blue foliage. It is a grass-like, low-growing, clumping ground cover with narrow leaves that are up to 3/8" wide and 12" long. It is semi-evergreen, or evergreen where winters are on the warm side. The common name, thinfruit sedge, is a reference to its conspicuous, but narrow seed heads.


Thinfruit sedge is not particular about soil type or moisture. In its native range, it is commonly found growing in areas that are consistently moist, or even wet, yet it adapts perfectly to dry environments once established. It prefers bright, open shade, but is not picky bout light levels either. Under ideal conditions it will spread by seed, but it is well-behaved and tends to stay in place forming ever larger clumps via a rhizomatous root system. When planted en masse it creates an effective, low-maintenance ground cover and only requires an optional hair cut at the end of winter to clean things up before new growth emerges in spring. Zones 5-6


Easy to propagate by division in early spring or late fall. I can also be propagated by seed, which are large enough to be easy to collect.

Additional Notes

If you've ever been searching for a native alternative to liriope, this is an excellent option. It also has the benefit of being ignored by herbivores, including deer.

Native Range & Classification

Recorded County Distribution: USDA data

Native Range:


Kingdom Plantae Plants
Subkingdom Tracheobionta Vascular plants
Superdivision Spermatophyta Seed plants
Division Magnoliophyta Flowering plants
Class Liliopsida Monocotyledons
Subclass Commelinidae
Order Cyperales
Family Cyperaceae Sedge family
Genus Carex Sedge
Species Carex flaccosperma thinfruit sedge