Darwinii is a dense, evergreen berberis. It's foliage is deep green and glossy. and each leaf is toothed around the edge. In spring, tiny, yellow flowers appear. These are followed with blue, black berries.
At a glance:
Yellow flowers appear in spring
Full sun/partial shade
Well drained fertile soil
Will reach a height of 2.5m and a spread of 2.5m over 10-20 years