Hard Wallflower
Erysimum marschallianum
- Native to:
- Austria, Czechia-Slovakia, Germany, Kazakhstan, Kirgizstan, North Caucasus, Romania, Russia, Tadzhikistan, Ukraine, Uzbekistan
Алексей Ябс
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Brassicaceae
- Genus:
- Erysimum
- Species:
- Erysimum marschallianum
- USDA Symbol:
- ERMA18
Growth Characteristics
- Life Cycle:
- Biennial | Perennial
- Growth Habit:
- Forb/herb
- Height:
- 60 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- may,jun,jul
- Bloom Colors:
- yellow
Garden & Ecology Notes
- Wildlife Value:
- bees, butterflies
- Deer Resistant:
- Yes
- Fragrant:
- Yes
Soil Requirements
- Soil Type:
- sandy, well-drained, nutrient-poor soil
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- native to rocky, mountainous areas
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 14–30 days
- Germination Time:
- 14–21 days
- Notes:
- Seeds germinate best with light exposure and cool temperatures around 15-18°C.
The above propagation data sourced from Claude AI
ORGHPS Germination Guide: Sow @ 20C. Germinates within 3 months.