The species epithet phyllocephala draws from the Greek for leafy head, an apt description of the unusual growth habit that gives this Chinese sedge its common name. Rather than forming the low, arching tufts typical of the genus, Carex phyllocephala produces tall erect stems topped by rosettes of radiating leaves that recall the silhouette of a tropical palm at miniature scale. It is native to southern and south-central China, and its preference for warm, humid conditions suits it to zones 7 through 10. The cultivar Sparkler — with its white-striped leaves — is far more common in cultivation than the plain green species and brings a lively lightness to shaded plantings.

Palm sedge grows to two feet in moist, humus-rich soil, performing best in partial or full shade and tolerating full sun only where moisture is absolutely consistent. Once established it shows more drought tolerance than many sedges, making it adaptable to the occasionally neglected garden. It can self-seed, which is worth monitoring in hospitable climates. Container culture suits it well, though the roots need protection from hard freezes — in marginal climates, bringing the container into a frost-free greenhouse or conservatory for winter is the reliable approach. As a foliage accent or an unusual groundcover in an Asian-inspired garden or shaded border, it offers something genuinely distinctive among the sedges.