Wallflower ‘Bowles Mauve’ flowers from February right through to midsummer, and well deserves its RHS AGM. A relatively short-lived hardy perennial, ‘Bowles Mauve’ is unbeatable for flower power, producing masses of mauve blooms above clumps of grey-green, evergreen foliage. This tough little Eryisimum is versatile and undemanding, coping in even the poorest of soils. It’s perfect for adding long-lasting colour to beds and containers. Height: 75cm (30). Spread: 60cm (24).