Camassia leichtlinii is a perennial bulbous plant that flowers in May to June. Native to western North America, it is also known by the common name Quamash. Plants prefer full sun and a moist but well-drained soil and are rated H7 (fully hardy) for UK gardens. The bulbs are ornamental and should not be eaten; wear gloves when handling.

Camassia leichtlinii (Camass Caerulea Group) is a bulbous perennial from western North America that flowers in May to June.

https://en.wikipedia.org/wiki/Camassia_leichtlinii

Camassia is a genus of plants in the asparagus family native to North America. Common names include camas, quamash, Indian hyacinth, camash, and wild hyacinth.

Camassia leichtlinii

Camass Caerulea Group | Camassia leichtlinii

Camassia leichtlinii 'Atroviolacea' is a perennial in the Camassia genus that flowers in May to June. It favours a sunny position and performs best where soil remains moist but well-drained. The plant tolerates a wide range of soil textures, from sandy to clay. It is native to western North America and is fully hardy in the UK.

Great Camas Camassia leichtlinii 'Atroviolacea' flowers in May to June and prefers full sun with moist, well-drained sandy to clay soils.

Camassia leichtlinii 'Atroviolacea'

Great Camas | Camassia leichtlinii 'Atroviolacea'

Camassia leichtlinii 'Eve Price' is a perennial (commonly called Quamash) valued for its concentrated spring flowering. It blooms in May to June and prefers a sunny, open site. Plants do best in soils that remain moist but are not waterlogged. It is fully hardy in the UK (H7).

Camassia leichtlinii 'Eve Price' (Great Camas) is a spring-flowering perennial that blooms May to June and prefers full sun with moist, well-drained soil.

Camassia leichtlinii 'Eve Price'

Great Camas | Camassia leichtlinii 'Eve Price'

Quamash (Camassia leichtlinii 'Orion') is a perennial of the genus Camassia that flowers in May to June. It prefers full sun and a moist but well-drained soil, tolerating sandy, loamy or clay textures. Rated H7, it is fully hardy in UK gardens and corresponds to USDA zones 3–7. Native to western North America, it suits sunny, moisture-retentive sites in borders or naturalised groups.

Quamash (Camassia leichtlinii 'Orion') flowers in May to June and favours full sun in moist, well-drained sandy to clay soils.

Camassia leichtlinii 'Orion'

Quamash | Camassia leichtlinii 'Orion'

Camassia leichtlinii 'Plena' is a spring-flowering perennial that blooms in May–June. It favours full sun and soils that are moist but well-drained, from sandy to clay types. Native to western North America, it is fully hardy in the UK (H7, USDA 3–7).

Quamash (Camassia leichtlinii 'Plena') flowers in May–June and prefers full sun in moist, well-drained sandy to clay soils.

Camassia leichtlinii 'Plena'

Quamash | Camassia leichtlinii 'Plena'

Camassia leichtlinii var. suksdorfii is a herbaceous perennial bulb in the genus Camassia that flowers in May to June. It favours full sun and moist but well-drained soils across sandy, loamy and clay types. The plant is fully hardy in the UK (H7; USDA 3–7). Handle the ornamental bulbs with care as they are not to be eaten and should be handled with gloves, keeping them away from pets.

Quamash (Camassia leichtlinii var. suksdorfii) blooms May to June in full sun on moist, well‑drained soils and its bulbs are ornamental only.