Oak Sedge

The only ground cover that's genuinely adapted to dry, acidic, root-competitive shade under mature oaks. it evolved there, and it shows.

Oak Sedge is the sedge that grows under oaks, literally. It evolved in the dappled shade and dry, acidic, root-competitive soils beneath oak canopy, which makes it one of the few plants that thrives in exactly the situation most homeowners find most difficult to plant. Under a mature red oak or white oak, in the dry zone where even lawn grass gives up, Oak Sedge spreads quietly and looks right at home. Fine-textured, low-growing, and semi-evergreen, it forms a soft carpet that can be left unmowed for a naturalistic look or maintained at 3–4 inches with occasional mowing as a lawn alternative. The color is bright green in spring, deepening slightly in summer, and holding through mild winters in most Mid-Atlantic climates. It's slow to establish from small plants. Give it two seasons before expecting significant spread. Once established, it's essentially self-maintaining, competing well against weed invasion in its preferred dry-shade conditions. Plant it in drifts of at least 7–9 plants for the fastest coverage.