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 British Columbia to Northern California. Grows to 5–6 ft. tall, with one to six smal...
Native to California. Robust plant with solid green leaves and 12–15-in.-tall stems. Golden yell...
From Oregon and Washington. Pink and white flowers emerge in airy sprays from an 8-in. rosette of narr...