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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 rock gardens.
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. Perennialization 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 growing season.
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.
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