This is a fascinating article published by Friends of the Earth which gives all gardeners food for thought!…
They are fully hardy to frost tender, min 3C, and will need full sun with fertile, well drained soil. You should water the containerized specimens freely in the summer and moderately at other times.
Propagate from seed or cuttings in spring or summer. In mild climates they self- seed readily.
Pests, diseases or disorders
Whitefly may sometimes be troublesome. Contact with foliage may irritate skin.