keep plants compact and produce an abundance of flowers the following year. Cut back yellowing foliage on hardy perennials such as daylilies, crocosmia and asters. It will make the garden look ...
Piet Oudolf, father of the New Perennial Movement, has dug up his famous double borders at the Royal Horticultural Society’s garden at Wisley in Surrey and transformed them. John Hoyland takes a look, ...