I wrote recently about watering during an extended hot spell, and while working today I was…
They will thrive in fertile, well-drained soil with full sun. This is a hardy plant that enjoys a good mulching in colder climates during the winter months.
You can propagate by division in the spring or from seed in the spring or autumn.
Pests, diseases or disorders
May be damaged by slugs and snails and powdery mildew.