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.
Commonly seen in shaded woods from California to British Columbia, east to the Rockies. Grows to 1&nda...
Medium to large; quite a long neck, interesting and attractive in form. Heavy russeting on green or ye...
Flower heads to 2 in. wide, borne singly on 1–1 1/2-ft. stems above a foot-wide foliage clump. U...