Coreopsis tinctoria (Plains Coreopsis) Yellow/Red. Annual. Mid/Late Season Bloom. Height 12-36". Sun/shade. 1,700,000 per pound. Origin: North America. Zones: 3-10. Recommended Coverage: 1 oz. Up to 600 Sq. Ft 4 oz. Up to 2,500 Sq. Ft 1 Pound Up to 10,000 Sq. Ft 5 Pounds Up to 1.3 acres