Berberis × gladwynensis 'William Penn'
William Penn Barberry
Native to (or naturalized in) Oregon:
- Evergreen shrub, 4 ft (1.2 m) tall and 4-6 ft (1.2-1.8 m) wide, mounding and spreading. Stems have long spines (thorns). Leaves alternate, simple, 2.5-5 cm long, margin is spiny, glossy dark green, bronze-red in winter. Flowers small, yellow, appear in spring. Fruit small, tube-like, red.
- Sun or partial shade.
- Hardy to USDA Zone 6 A hybrid of B. verruculosa and B. gagnepainii, introduced by the Henry Foundation of Gladwyne, Pennsylvania.