Sidalcea can be annuals or perennials, forming a clump of rounded or palmately lobed basal leaves, with erect stems bearing more deeply divided leaves and terminal racemes of 5-petalled mallow-like flowers
'William Smith' is an erect herbaceous perennial making a clump to 90cm in height, with rounded basal leaves and deeply lobed stem leaves. Flowers 5cm in width, with five salmon tinted, deep rose-pink petals