Annual. Easily grown in poor to average, dry to moderately moist, well-drained soils in full sun. Drought tolerant. Plants may self-seed.
Other details:
May be a noxious weed or invasive
Drought-tolerant; suitable for xeriscaping
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Sow seed directly in the garden after last frost date, or start indoors 6-8 weeks earlier.
Also easy from stem cuttings of mature plants in mid to late summer
By our calculations, you should look at sowing Red about 49 days before your last frost date.
Set out seedlings and purchased plants at last frost date. Seedlings transplant easily, put three seedlings into a 7cm pot to make a sturdy pot full to plant out
As Red is tender, ensure temperatures are mild enough to plant out (around 12°C / 54°F as a guideline) - wait until after your last frost date to be on the safe side.The flowers are best enjoyed on the plant