Carex amphibola is a widely adaptable native sedge naturally occurring from Texas to Quebec and Georgia to New Hampshire. Its forms a compact and semi-erect mound. Proven to be semi evergreen (zone 6b) and prefers deciduous shade in upland or even floodplain conditions; easily adapts to fine or medium textured soils. Creek sedge lends itself well to native shade gardens, along wood paths or as a slope stabilizer. It is a vigorous clump former with shiny, narrow green foliage 1/8" wide by up to 12" long. C. amphibola is an excellent companion for Phlox divaricata, Chrysogonum and Polygonatum...among others!
This hardy species is a delightful and tough landscape solution. Taller and more vigorous than 'Moonbeam' or 'Zagreb', it has bright yellow flowers for 8 weeks or more, from late May to early August and often later. Drought tolerant and easy to grow in a garden or along the roadside.