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Erysimum insulare
Island wallflower is a perennial herb or subshrub from coastal bluffs and dunes of southern California and the Channel Islands, grown for its bright yellow flowers. It needs sun, sharp drainage and little water once established.
Erysimum insulare is a species of Erysimum known by the common name island wallflower. It is endemic to coast of southern California, including the Channel Islands. Erysimum insulare grows on coastal bluffs and sand dunes.
Coast wallflower · Cascade wallflower · Western wallflower · Erysimum baeticum · Cape Verde Wallflower · Erysimum canescens · Sanddune wallflower · Erysimum cazorlense · Wormseed wallflower · Wallflower · Erysimum collinum · Erysimum crepidifolium
Text excerpted from the Wikipedia article Erysimum insulare 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.
