One of the attractive things about certain plants is what they, in their turn, attract into the garden. Summer-flowering plants with purple or blue flowers such as Lavender, Catmint or Buddleia are particularly good for bringing in butterflies and bees. Later in the summer, one of the best plants for butterflies and bees is Sedum ‘Autumn Joy’, which goes on and on flowering until early winter.For the birds, winter food is important, and plants such as Holly, Ivy, Hawthorn and Elder provide tasty berries, as well as shelter for nesting and perching.