How to Grow Wallflower — Erysimum
Erysimum, commonly called wallflower, is grown for its dense clusters of four-petaled showy flowers that can be lavender, sky blue, yellow, mahogany, red, or orange. Erysimum cheiri, the annual English wallflower, and the perennial cultivar ‘Bowles Mauve’ are the best-known wallflowers. Erysimum is a genus of about 80 annuals, biennials, and perennials. This genus now…