Direct sow in early spring, planting 1/4" below the surface of the soil. For continuous blooming into late fall, plant a new crop every two weeks. To start indoors, sow the seed in a flat or peat pots 6-8 weeks before the last spring frost; keep the soil lightly moist and the temperature around 65-70 degrees F until germination, which should occur within 7-10 days. Transplant the seedlings as soon as they can safely be handled and there is no chance of frost.