About
Erysimum helveticum is a compact, cushion-forming, perennial wallflower from the Alps and Apennines producing rosettes of narrow, grey-green leaves and short, dense racemes of bright-yellow, fragrant, four-petalled flowers in late spring. A charming and ornamental alpine wallflower for a sunny, well-drained rock garden.
About the genus
Erysimum, the wallflowers, are annuals, biennials and perennials with narrow leaves and dense, upright racemes of four-petalled, sweetly fragrant flowers in shades of yellow, orange, red, purple, pink and white. Among the most popular of spring-flowering plants.
Plant details
Suggested usesBedding, containers, hanging baskets.
Care notes
CultivationPlant out after last frost in fertile, well-drained soil.
PruningDeadhead regularly to prolong flowering.
PropagationGrow from seed sown in spring.
Pest resistanceGenerally pest-free. Monitor for common garden pests.
Disease resistanceGenerally disease-resistant. Ensure good air circulation.