Trillium ovatum is part of the Melanthiaceae family of plants. It is native to North America and is a herbaceous perennial. They also call it the Pacific Trillium, Western Trillium, Western White Trillium, Western Wake Robin, or Western Wakerobin. Ovatum means shaped like an egg referring to the petals.
This is the most widespread Trillium in North America. It is mostly found on the west coast but some have been spotted as far inland as Colorado. Meriwether Lewis originally observed it in 1806, during the Lewis and Clark Expedition.
Trillium ovatum grows to 50cm or 20in tall. It has ovate-rhombic leaves, about 5in or 12cm long. The flowers are white though as they age they might turn pink. Trillium ovatum usually grows in forests. It flowers from February to April depending on its location. This plant can experience extended dormancy sometimes as long as 3 or more years.
How to grow Trillium ovatum:
Grow it in the shade or partial shade. Plant it in humus-rich, moist but well-drained soil. Propagate from rhizomes or divisions. It is generally disease-free and pest-free, but watch out for slugs and snails.
Also read about Trillium chloropetalum.