Like many of our native plants, Common Knapweed is an excellent source of nectar and pollen for all kinds of insects including bees, wasps and butterflies. To encourage wildlife into your garden, try planting native flower species in your borders to provide a 'nectar-cafe'. To find out more about wildlife-friendly gardening, visit our Wild About Gardens website: a joint initiative with the RHS, there's plenty of facts and tips to get you started.