Plant description
A perennial shrub which grows to 2 m high. Many stems arise from the base annually and form a large clump. It has bright green leaves that are arranged in pairs, are lance shaped, and have serrations along the edge. Its flowers are pale lilac and occur along a large flower spike in late spring and summer. The fruits are brown, oval shaped capsules which contain numerous small seeds inside.
Companion plants and pollinators
This plant is most likely important for native bees, moths, butterflies and other insects when it flowers. The biology of this plant is not fully understood however including the specific pollinators that are associated with it.