Bloom Time/Days To Maturity: Spring to mid Summer.
Zone: 3 - 8 (-30° F.).
Restricted States: AE AK GU HI PR
Spacing: 12 - 18 inches.
Depth: 1 - 2 inches.
Spread: 18 inches.
Comments: Largest of the trilliums. Adds color while maintaining a naturalized look. Blooms mid-Spring to mid-Summer. Grows 12 - 18 inches tall and spreads to 18 inches. Purple and Lemon are more compact, 6 - 12 inch tall with a neat 12 inch spread. Select plants. Restricted States: AE, AK, GU, HI, PR.