Plant very solid, vigorous, flowering uninterrupted from June to October. Flowers in light clusters dancing with the wind, white with pink reflections.
Prune back to the ground in late fall. In spring, successive prunings encourage branching and a more compact habit thereafter.
Deciduous perennial plant native from North America, with impressive growth rate, able to grow in the poorest or dryest conditions. Can disseminate by seedlings in the garden.