Yellow Avalanche-Lily
Erythronium grandiflorum
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Liliaceae
- Genus:
- Erythronium
- Species:
- Erythronium grandiflorum
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Geophyte
- Height:
- 1-2 ft
- Light Requirements:
- Part Shade
- Drought Tolerance:
- High
- Bloom Months:
- may, jun, jul
- Bloom Colors:
- Red, Yellow
- Ground Cover:
- Yes
Native Range
United States: California, Colorado, Idaho, Montana, New Mexico, Oregon, Utah, Washington, Wyoming, Canada: Alberta, British Columbia
Soil Requirements
- Soil Type:
- rich, well-drained loamy soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- consistently moist
- Notes:
- prefers cool, mountainous regions
Germination Information
Pre-treatment: Seeds require a 5 month cold, moist stratification. Fresh seeds may require a period of after-ripening. 2 year old seeds were treated in protocol 1.
Establishment: Seeds are hand collected in late August and early September when capsules turn papery and begin to split, and when seeds are brown in color. Capsules are collected in paper bags and kept in a well ventilated drying shed prior to cleaning. E. grandiflorum occurs from sagebrush slopes and montane forests to subalpine to alpine meadows, from southern B.C. to Washington and northeastern Oregon, east to Idaho, Montana, Wyoming, Colorado; from 1000m to 3500m elevation.
Source: npn.rngr.net