Sowing: Direct sow in late fall or early spring, planting the seeds thinly and 1/2" deep. In the spring, keep the soil moist after sowing; germination should occur within 7-10 days. To start indoors, plant three or four seeds 1/2" below the surface in individual peat pots. Keep the soil lightly moist and at a temperature of 65-70 degrees F until germination; thin to the strongest seedlings. Transplant the seedlings before they reach a height of 5" Growing: Water seedlings occasionally until they become established. Mature plants tolerate drought, but prefer adequate moisture and may need occasional watering. Prune off developing tips to force the plant to produce more branches and fuller growth, as well as more flowers. If the stems begin to fall over, provide support. Deadhead spent blossom for the most abundant flowers, keeping in mind that the latest blossoms will need be left in order to produce seed; though an annual, it will reseed easily to produce volunteer plants. This plant attracts butterflies and bees, in addition to providing nutritious seed for birds. Cornflower grows well in containers as well as in the garden. Seed Saving: After the flower fades, the tiny oblong seeds will form. As soon as the seed can easily be removed, it is mature. Remove the dried seed heads and rub them lightly to separate the seed from the husk. Store the seed in a cool, dry place.