Camassia cusickii, C. esculenta
Quamash, Camass, Wild Hyacinth
- cusickii (Light blue flowers)
- esculenta (Dark blue flowers)
- A. Flowering Characteristics
- Camassia spp. flower in late spring (May) for
2-3 weeks and are 24-30 inches tall.
- B. General Characteristics
- 1. Origin of species: Oregon and Washington
- 2. Common names: Quamash, Camass, Wild Hyacinth
- 3. Geophyte organ: Bulb
- 4. Hardiness type: Hardy I - Injured at temperatures
below 23 degrees F (-5C) when planted.
- 5. Natural reproductive systems and growth and development
requirements: Reproduces by seed and offset bulblets and requires a warm
(60 to 70F) - cool (28 to 40F) - warm (60 to 70F) thermoperiodic cycle.
- 6. Primary uses: Beds, meadows, woodland gardens, and
- C. Cultural Information
- 1. Bulb sizes: No. 1.
- 2. Planting density: 3-4 inches apart, 8-10 per sq. ft.
- 3. Planting depth: 8 inches to base of the bulb.
- 4. Planting time: Fall
- 5. Climatic zone habit: Zone 4 with mulch, Zones 5 to
7 without mulch.
- 6. Light requirements: Full sunlight to PM only sunlight.
- 7. Moisture: Tolerates summer drought. Keep moist during
- 8. Animal susceptibility: They are edible.
- D. Companion Plants:
- Alyssum, Arabis, Aster alpinus, Centaurea dealbata,
Coreopsis, Digitalis, Gypsophila paniculata, Hemerocallis (yellow cvs.),
Iris (rhizomatous white and yellow cvs.), Kniphofia (yellow
cvs.), Peonies (white and yellow cvs.), Phlox subulata, Verbascum, Rhododendron
spp. (deciduous and evergreen), Cotoneaster, Berberis, Acer palmatum,
Deutzia gracilis, Weigela.
Holland Technical Service Bulletin Number 31 was prepared for the WWW
system by A.A. De Hertogh, L.B. Gallitano, M.E. Traer, and A.B. Russell,
Department of Horticultural Science, NC State University. The information
was obtained not only from original research conducted by the authors but
also from databases released by other sources. This Bulletin was published
by the International Flower Bulb Center (IBC), Hillegom, the Netherlands
on behalf of the Dutch Flower Bulb Industry. Because of the various climates
in North America and year-to-year variability of the weather, the IBC cannot
and does not accept responsibility for divergent results that may arise
using information obtained from this document or site. Photographs copyright
@1997 by A.B. Russell and A.A. De Hertogh. Computer programming by Miguel
Buendia, graphics by Brad Capel.
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