Summer/fall bloomFrost tender
Plant after frost danger is over and night temperatures are evenly above 50°F (10°C). Sow seeds in a well-worked seedbed in full sun, 2 in. apart, with rows 12 in. apart. Cover very lightly and gently firm soil. Keep soil evenly moist; germination takes 10-15 days.
3-4 weeks before last expected frost, sow seeds 1 in. apart in seed starting mix and cover very lightly. Keep warm and moist and provide a strong light source until seedlings are well established. Transplant after gradually acclimating to outdoor conditions.
Space seedlings 10 in. apart when large enough to handle.
Coreopsis grows easily in ordinary garden soil in full sun. Be sure to thin seedlings before they get crowded. Incredible grows 2 to 2 1/2 ft. tall and these sturdy, long blooming garden performers and can tolerate hot and dry weather. Pick these decorative flowers often for lovely country style bouquets. Coreopsis are deer resistant and blossoms provide ample food and nectar for butterflies, bees and many other pollinators. After bloom is over, their seed heads provide nutritious food for hungry songbirds.