Western Wallflower
Erysimum asperum
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Brassicaceae
- Genus:
- Erysimum
- Species:
- Erysimum asperum
Growth Characteristics
- Life Cycle:
- Biennial | Perennial
- Growth Habit:
- Forb/herb
- Height:
- 2-3 ft
- Light Requirements:
- Full Sun
- Drought Tolerance:
- High
- Bloom Months:
- apr, may
- Bloom Colors:
- Yellow
Native Range
United States: Colorado, Iowa, Idaho, Illinois, Kansas, Minnesota, Missouri, Montana, North Dakota, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, Wyoming, Canada: Alberta, British Columbia, Manitoba, Ontario, Quebec, Saskatchewan
Reported Fauna Sightings
Bees: Brown-belted bumble bee (Bombus griseocollis), Brown-belted bumble bee (Bombus griseocollis), White-shouldered bumble bee (Bombus appositus), White-shouldered bumble bee (Bombus appositus)
Soil Requirements
- Soil Type:
- sandy, well-drained, nutrient-poor soil
- pH:
- 6.0 - 8.0 (neutral to slightly alkaline)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- native to arid and semi-arid regions
Germination Information
Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).
Source: OpenAI GPT-4o