Trilliums are very ornamental and long-lived plants. Tri, of course, means three in Latin, and thus with good reason this plant is named: it has three sepals, three leaves, and three petals. Trilliums grow from a short thick root or rhizome and generally grow well in well-drained woodland soils that remain moist in summer. They are often found growing beneath deciduous trees or shrubs. The leafless trees provide some shade while still allowing the plants to receive partial sun. In spring, the plant emerges from the ground and the 3 leaves unfurl. In mature plants, the flower stems and buds appear and the attractive single flowers gradually open. Trilliums flower during spring but it is generally recommend that you do not pick the flowers.
When replanting Trilliums, dig deeply to remove the entire plant and some of the surrounding soil, then replant immediately about 10 cms deep. Select a cool shady place where the plants will receive early morning light. The soil should be rich and well-drained. A slow release fertiliser with a 3-4 month action can applied and mixed in with the soil near to the plants. Later in autumn, the plants benefit from fallen leaves around them as they provide natural protection from the snow and cold. The organic matter is very beneficial to the plants as it starts to decompose. Trilliums also benefit from a dressing of well rotted pine needles in autumn.