Trillium undulatum - Painted Trillium, Laurel Trillium
A very pretty but slightly harder to grow Trillium. It must have shade and very acid soil, the pH must be around 4.5. It will tolerate some dry soil but the pH must be right or it will not survive. Also this one will not tolerate heat, should be grown on the cool north side. Often found growing under Rhododendron (Laurel Shrubs) hence its common name. In the wild it is only found at higher elevations, 3000 feet an up.
Shade, Rich Acid Soil pH 4.5, Late Spring, 8-12 in Tall, Zones 4-7