I really love this plant for its cheerful magenta coloured flowers. I have owned it myself, but it can apparently be rather short-lived and mine didn't survive…
They are frost hardy and easily grown in cool climates. They prefer a sunny site with well-drained soil.
You can propagate by seed or by division in autumn or spring. It also self-seeds freely.
Pests, diseases or disorders
Slugs may become a problem.