Bamboo Fargesia 'Black Pearl' purple - Hardy plantHandy as a fence! The bamboo 'Black Pearl' (Fargesia nitida) grows quickly and has a lot of leaves. The bamboo is also decorative! The stems are so dark purple they almost look black. A mysterious look. The winter hardy Fargesia retains its leaves all year round. The plant is therefore suitable as a hedge! The 'Black Pearl' can grow to up to 3. 5 metres tall. You can prune the plant in the autumn and winter. That way you keep the hedge shape you want.