Oak Sedge gets one of its many common names from its habit in the wild of growing under oak trees. Also called Plantianleaf Sedge, it grows in loose colonies via long underground rhizomes tolerating shade and preferring a well-drained, moist to dry shade. It is drought tolerant once established. It makes a great ground cover or lawn substitute (low foot traffic) and can tolerate more sun than most woodland plants. Penn Sedge flowers in April/May with a charming inflorescence. 
 
Adding to its versatility and charm, Penn Sedge is semi-evergreen only dying back in extreme cold and is a great substitute for Liriope (monkey grass).
 
It looks lovely combined with Columbine, Mayapple, Heuchera and Woodland Phlox or can be a calming present when planted in mass.
 
Larval Host to Mitchell's Styr butterfly.