Buddleia davidii is a sun loving butterfly magnet. This perennial comes in a variety of colors and needs fertile, well drained soil. Flowers develop on new growth so severe pruning is required in the early spring. In some areas, buddleia , a native of China, can become invasive. Removal of spent blossoms prevents this problem as well as encouraging the growth of new flowers. For more information about this shrub, click on the link below.