Wallflower 39bowles39 mauve39 produces an abundance of mauve flowers held above clusters of grey45green evergreen foliage this hardy perennial flowers from february to midsummer and makes up for being relatively short lived with sheer flower power this diminutive erysimum is certainly worthy of its rhs agm being low45maintenance and versatile and able to cope in even the poorest of soils wallflower 39bowles39s mauve39 is brilliant for filling containers and beds with