When does Western Wallflower bloom?

Western Wallflower typically blooms from April through July, producing clusters of bright orange to yellow flowers.

What pollinators visit Erysimum asperum?

Western Wallflower attracts various bees and butterflies, making it valuable for pollinator gardens in its native range.

Where is Western Wallflower native?

This species is native to much of the central and western United States, including the Great Plains states from Texas north to Montana and from Colorado east to Illinois.

What growing conditions does Western Wallflower prefer?

Western Wallflower thrives in full sun and low water conditions, making it well-suited for xeriscaping and prairie restoration projects.

Is Western Wallflower HOA-friendly?

Western Wallflower is generally an HOA-friendly choice in the right placement, with low maintenance.

Western Wallflower

Name: Pollinator Patch
Author: Pollinator Patch

Erysimum asperum

Last reviewed: June 2026

Erysimum asperum (Western Wallflower) is a drought-tolerant native wildflower blooming orange flowers from April through July across the Great Plains and western states.

Western Wallflower (Erysimum asperum) — Photo: no rights reserved, uploaded by Christine Rudman

Light

full sun

Water

low

Size

8"–24" H × 6"–12" W

Bloom

Apr, May, Jun, Jul

Native to

AR, CO, ID, IL and 10 more states

Pollinators

bees, butterflies

Browse plants for this ecoregion

Chihuahuan Deserts Central Oklahoma/Texas Plains Texas Blackland Prairies

Western wallflower is a compact perennial that produces clusters of bright yellow to orange flowers from spring through mid-summer. This drought-tolerant native forms neat clumps and thrives in sunny, well-drained locations with minimal water once established.

Growing Western Wallflower

Grow Western Wallflower in full sun and low water. Mature plants reach 8 to 24 inches tall and spread 6 to 12 inches wide. Expect low maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

Western Wallflower is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.

Works well in: front yard, foundation, street edge, mid zone.

Wildlife value

The fragrant flowers are excellent for attracting bees and butterflies throughout the long blooming season. This plant serves as a host for several native butterfly species.

Common questions

When does Western Wallflower bloom?: Western Wallflower typically blooms from April through July, producing clusters of bright orange to yellow flowers.
What pollinators visit Erysimum asperum?: Western Wallflower attracts various bees and butterflies, making it valuable for pollinator gardens in its native range.
Where is Western Wallflower native?: This species is native to much of the central and western United States, including the Great Plains states from Texas north to Montana and from Colorado east to Illinois.
What growing conditions does Western Wallflower prefer?: Western Wallflower thrives in full sun and low water conditions, making it well-suited for xeriscaping and prairie restoration projects.
Is Western Wallflower HOA-friendly?: Western Wallflower is generally an HOA-friendly choice in the right placement, with low maintenance.

Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

Ready to grow Western Wallflower? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

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