When you look at what is generally available in nurseries and garden centres you would think that there is only one Buddleja: B. davidia, with its frumpy flowers and coarse foliage. In fact the genus is full of interesting and elegant shrubs. B. lindleyana has spires of flowers that start by growing straight upwards and then cascade down to create a wonderful waterfall of a plant. The individual flowers are elongated tubes that are pale mauve outside and purple inside. Looks gorgeous, smells delicious and is as attractive to butterflies as are its cousins.
A native of eastern China, it grows to about 2m tall and needs well-drained soil in full sun.