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Erysimum repandum
Also called Bushy wallflower, Treacle mustard, Repand wallflower, Spreading Treacle Mustard
Spreading wallflower (Erysimum repandum) is a branching annual herb from Eurasia, grown for its spikes of yellow flowers and often found as a roadside weed. Let it self-sow and give it sun and well-drained soil.
Erysimum repandum is a species of Erysimum known by several common names, including spreading wallflower, spreading treacle-mustard, and bushy wallflower.
It is native to Eurasia, but it is known in many other parts of the world as an introduced species and a common roadside weed.
Western wallflower · Wallflower · Erysimum siliculosum · Wallflower
Text excerpted from the Wikipedia article Erysimum repandum by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
