4 Oclock

Tuberous rooted tender perennial that is winter hardy to USDA Zones 9-11. It is easily grown in average, consistently moist, well-drained soils in full sun to part shade. Tolerates a wide range of soils. Sow seed directly in the garden after last frost date, or start seed indoors 6-8 weeks earlier. Set out seedlings, purchased plants/tubers or overwintered tubers after last frost date. Tuberous roots may be dug in fall and stored overwinter in a barely moist medium in a cool dry corner of the basement or frost-free garage. The main advantage to digging the tubers is that plants tend to flower much better from established roots. Plants may self-seed in optimum growing conditions and have escaped gardens and naturalized in parts of the southern United States.