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A. Flowering Characteristics
Erythronium flowers in mid-spring (April/May)
and lasts for about 2 weeks. Plants are 10-14
inches tall.
B. General Characteristics
1. Origin of species: Hybrid of 2 North American
species
2. Common names: Avalanche Lily, Fawn Lily, Glacier
Lily, Trout Lily
3. Geophyte organ: Bulb
4. Hardiness type: Hardy II -Injured at temperatures
below 14 degrees F (-10C) when planted.
5. Natural reproductive systems and growth and
development requirements: Reproduces slowly by
offsets and requires a warm (60 to 70) - cool
(28 to 32F) - warm (50 to 60F) annual thermoperiodic
cycle.
6. Primary uses: Beds, rock gardens, ground covers,
and woodland gardens.
C. Cultural Information
1. Bulb sizes: No. 1.
2. Planting density: 1-2 inches apart, 15-25 per
sq. ft.
3. Planting depth: 5 inches to base of the bulb.
4. Planting time: Fall
5. Perennialization habit: 1990 USDA Climatic
Zone 3 with mulch, 4 to 8 without mulch.
6. Light requirements: PM only or AM only sunlight
to 25 - 50% shade.
7. Moisture: Should be planted in an area that
retains moisture throughout the year.
8. Animal susceptibility: Not reported.
D. Companion Plants:
Anemone sylvestris, Aquilegia, Chaenomeles japonica,
Dicentra, ferns, Forsythia, Helleborus orientalis,
Hosta, Jasminum nudiflorum, Myosotis, Phlox divaricata,
Phlox stolonifera, Primula, Ranunculus repens,
Rhododendron spp. (deciduous and evergreen), Cotoneaster,
Berberis, Acer palmatum, Deutzia gracilis, Weigela
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