Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Brassicaceae

Genus:

Erysimum

Species:

Erysimum asperum

USDA Symbol:

ERAS2

Growth Characteristics

Life Cycle:

Biennial | Perennial

Growth Habit:

Forb/herb

Height:

90 cm

Light Requirements:

Full Sun

Drought Tolerance:

High

Bloom Months:

apr,may,jun,jul

Bloom Colors:

yellow, orange

Wildlife Benefits

Bees:

★☆☆☆☆ Documented bee visitation (GBIF)

Butterflies & Moths:

★☆☆☆☆ Documented Lepidoptera association (GBIF)

Reported Fauna Sightings

Garden & Ecology Notes

Wildlife Value:

bees, butterflies

Deer Resistant:

Yes

Fragrant:

Yes

Fire Ecology:

Fire adapted — tolerates or benefits from fire

Fire Notes:

Resprouts from crown after fire in prairie and grassland ecosystems; often increases in abundance post-burn.

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

Propagation & Germination

Stratification:

Cold/moist stratification required — 30–60 days

Germination Time:

7–21 days

Notes:

Seeds germinate readily with light and cool temperatures. Cold stratification improves germination rates.

The above propagation data sourced from Claude AI