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Camassia

Camassia

Camassia cusickii ( Cusick Camass )
Reaches up to 3 x 1.5 feet, and is native to northeastern Oregon.
The foliage is gray-green. The bright blue flowers, up to 1.5 inches across, are borne during mid spring.
Hardy zones 3 to 8 in full sun to partial shade.

Camassia leichtlinii ( Great Camass )
Reaches up to 4 x 1.5 ( rarely over 2 ) feet, and is native to forest edges in western North America ( British Columbia to California ).
The grassy, dense foliage is mid-green.
The foliage goes dormant during late summer.
The blue flowers, up to 3 inches across, are borne on tall spikes during mid spring.
Hardy zones 3 to 8 in full sun to partial shade. Tolerates clay and wet sites that become dry during summer. The bulbs should be planted during autumn and at least 8 inches in depth. It is great for naturalizing.

Alba
White flowers

Blue Danube
Deep blue flowers.

Semiplena
Double flowers.

Camassia quamash ( Common Camass )
Reaches up to 2 x 1 feet, and is native to western North America ( southern British Columbia to southern Alberta; south to northern Oregon and Montana ).
The very narrow foliage is mid-green.
The very showy, blue flowers, up to 1.5 inches across, are borne on large spikes during late spring.
Hardy zones 3 to 8 in full sun to partial shade ( also full shade in deciduous woodlands with late leafing trees ). Tolerates clay and wet sites that become dry during summer.