Bulbs and bulblike plants
Bloom in early spring; need some winter chill. Each stem is topped with a whorl of three leaves; a single three-petaled flower appears in the center of the whorl (sometimes on a stalk, sometimes virtually stalkless). Plant in a shady, woodsy site. Left undisturbed, plants will gradually increase by rhizomes. Dies to the ground in mid- to late summer. Specialists in native plants offer many species.Trillium ovatum
Western native. Resembles T. grandiflorum but has narrower petals; flowers are usually upright and are borne on stalks.
Native from Northern California to Alaska and Idaho. Grows to 6–8 in. high; in good growing cond...
Native from southwestern Oregon to Southern California. Grows to 4–8 ft. tall, with unscented Tu...
Native from British Columbia inland to Montana and southward to coastal Northern California. Many Nort...