Trillium grandiflorumCommon Name: 'American wake-robin'
AGM. A clump-forming perennial which produces stems each with a whorl of three leaves and a solitary large, showy, outward facing, white flower, tinged pink as it ages. Apr-May. H45cm S30cm.
Plant in moist but well-drained, humus-rich, preferably acid to neutral soil, in semi-shade or deep shade. Mulch in autumn with leaf mould. Relatively easy to grow but requires time to become established.