Like many on this site I expect, I am fearing how many plants I will lose this week. I have wrapped up those I can manage and know are at risk with fleece.…
You can grow them in a frost-hardy climate and plant in fertile, well-drained soil with full sun.
You can propagate from seeds in early summer or early autumn, and perennials from seed in autumn or by division in spring. Plant 10cm tip cuttings from mid spring.
Pests, diseases or disorders