Carex Flaccosperma or

Carex Flaccosperma or

Carex Flaccosperma

Carex flaccosperma is a beautiful, native sedge with half-inch-wide, greenish blue leaves. It forms a small clump that will spread slowly via short rhizomes to form a sturdy, evergreen ground cover. It thrives in shade to part shade and mixes easily with ferns, hostas, and other shade perennials. It can take partial sun if it has consistent moisture. Blue Wood Sedge is especially at home in woodland gardens. Greenish-white flowers appear in late spring, followed by interesting seed heads. It’s often found on wet sites and is tolerant of poorly drained soils as well as average garden soil. Does best with consistent moisture but is reasonably drought tolerant once established.



Carex flaccosperma is frequent, especially on the Coastal Plain west of Alabama. It grows frequently with C. caroliniana, C. corrugata, and C. crus-corvi and occurs occasionally with C. glaucodea. When C. flaccosperma and C. glaucodea co-occur, C. flaccosperma usually inhabits slightly wetter soils than C. glaucodea. Natural hybrids between C. flaccosperma and C. glaucodea form rarely and are sterile (R. F. C. Naczi 1991). Hybrids have been collected in Arkansas, Louisiana, Missouri, and Oklahoma.Siting: Carex should be planted in moister areas that receive some shade. They are full shade tolerant but perform better when some direct sunlight is received each day. The soil should be slightly acidic and finer in texture. Too coarse of a soil does not retain enough moisture and could lead to plant death.

Carex flaccosperma (Thinfruit sedge), like other green plants that are photosynthesizing, is removing carbon dioxide from the atmosphere and releasing oxygen—a definite benefit to the ecosystem—but I imagine you are looking for something unique that it might be doing. Since it resembles the popular Asian liriope species that are considered invasive in some areas, it can be used as a substitute for liriope to be planted as an ornamental. Replacing a potentially invasive non-native plant ranks as an ecosystem benefit in my estimation. Cornell University Integrated Pest Management lists it as one of the Weed-Suppressive Groundcovers and the Tennessee Exotic Pest Plant Council lists it as an alternative to the invasive Vinca minor (common periwinkle) on its Tennessee's Plant Alternatives to Exotic Invasives list. I could find no information that Carex flaccosperma was capable of phytoremediation of any sort.Tropicos.org 2020. Carex flaccosperma. Missouri Botanical Garden. Published on the internet. Accessed: 2020 Jan 18. (Source:species.wikimedia.org)



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