Wormseed Wallflower

Erysimum cheiranthoides

Native to:
Austria, Baltic States, Belarus, Belgium, Bulgaria, China, Czechia-Slovakia, Denmark, Finland, France, Germany, Hungary, Iceland, India, Japan, Kazakhstan, Kirgizstan, Korea, Kuril Is., Netherlands, North Caucasus, Norway, NW. Balkan Pen., Poland, Romania, Russia, Sweden, Switzerland, Transcaucasus, Ukraine

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Brassicaceae
Genus:
Erysimum
Species:
Erysimum cheiranthoides
USDA Symbol:
ERCH9

Growth Characteristics

Life Cycle:
Annual | Biennial
Growth Habit:
Forb/herb
Height:
90 cm
Light Requirements:
Full Sun
Drought Tolerance:
Medium
Bloom Months:
may,jun,jul,aug,sep
Bloom Colors:
yellow

Garden & Ecology Notes

Wildlife Value:
bees, butterflies
Deer Resistant:
Yes

Soil Requirements

Soil Type:
moist, well-drained, fertile loam
pH:
5.5 - 7.5 (slightly acidic to neutral)
Drainage:
good drainage required
Moisture:
consistently moist
Notes:
Prefers disturbed soils in its native range

Propagation & Germination

Stratification:
None required
Germination Time:
7–21 days
Notes:
Seeds germinate readily without pretreatment. Light may improve germination rates.

The above propagation data sourced from Claude AI

ORGHPS Germination Guide: Sow @ 20C. Germinates within 3 months.

Source: Ontario Rock Garden & Hardy Plant Society