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.
By our calculations, you should look at sowing Winter about 49 days before your last frost date.
Set out seedlings and purchased plants at last frost date.
Winter is tender, so ensure you wait until all danger of frost has passed in your area before considering planting outside.Golden