Spring bedding is synonymous with wallflowers, which make a bright and fragrant accent in beds and borders early in the year, and are discarded after flowering. Less familiar are the perennial wallflowers such as Erysimum ‘Bowles’s Mauve’. This is a beautiful and floriferous, woody-stemmed perennial, bearing masses of mauve flowers on tall spires, for months on end. In southern regions, it flowers all year round. For best results grow Erysimum ‘Bowles’s’ Mauve’ in moist but well-drained soil, in sun or partial shade. Trim flower stalks as they fade. It’s a short-lived perennial, but is easily replaced with young plants raised from cuttings.