[header] How to grow coreopsis [title] Sow the seeds once the ground begins to thaw. [step] Coreopsis flowers can be sown directly in the plant bed during early to mid spring, after the frost has cleared but before the weather gets hot. [title] Pick a sunny spot in your garden. 
[step] Coreopsis flowers are native to areas with prairies and dry plains, and as a result, the plant thrives in warm, sunny locations. A south-facing spot that receives full sun often works best, but an east-or west-facing spot that receives at least partial sun will work, as well.