Winter hardy to USDA Zones 10-11 where it grows as a woody based perennial. Needs regular moisture, but avoid overhead watering. Superior soil drainage is the key to growing this annual well. Start seeds indoors 12-16 weeks before last frost date. Set out seedlings or purchased starter plants in spring after last frost date. Thrives in hot and humid summer weather. Cuttings may be taken from plants in late summer for overwintering so as to provide a stock the following spring. Container plants may be overwintered indoors. May self-seed in optimum growing conditions.
