They are fully to frost hardy. The globe flowers will thrive in cool, moist soil with partial shade, and are not tolerant of hot or dry conditions. The long blooming period will be extended if deadheaded regularly. The plant can be divided in the autumn. Prune in late summer.
You can propagate from seeds in the spring or autumn or by division in early autumn or early spring.
Pests, diseases or disorders
Powdery mildew may be a problem.