Very attractive bright white, fully double flowers above deep green foliage with a neat & compact habit, achillea ptarmica Double Diamond young plants are great for border fringes & pots. These fully hardy perennials are specially raised as young plants to flower in the summer of their first year. Simply pot up on receipt, keep frost free & then plant out from late May. (Please note: flowering times may vary in subsequent years & occasionally adverse weather or growing conditions may mean there are limited or no flowers until the second year).