The ‘William Penn’ is a dense, mounded shrub with dark green foliage that turns bronze in the fall.  It has arching branches and grows to about 4′ in height.  The numerous bright, showy yellow flowers appear in April and May.

Bloom Time: April through May.

Growth Habit: 4’ in height with arching branches.

Foliage: Dark green turning bronze in the fall.

Sun/Shade: Sun, Partial Shade.

Hardiness Zones:  6-9.