As I have grown older I have become more in tune with older things ... distressed finishes on pots and galvanised buckets, ancient lumps of wood, discarded…
They are fully hardy and will tolerate most soils but grow well in a sunny, well drained soil. The taller species and cultivars will need staking. Tall species and cultivars need staking.
Divide plants in spring.
Pests, diseases or disorders
Powdery mildew is common and aphids may be a problem.