Answer: Coreopsis is a versatile, carefree plant, performing best in full sun, planted in rich, well-draining soil. If you remove spent blooms along with the stems your coreopsis will renew itself and bloom even more. Excessive fertilizing will decrease flowering so feed only lightly. Perennial coreopsis can be divided in the spring or in the autumn by cutting through the root mass, making sure that each root division has some foliage attached. Replant in amended soil and water regularly during the growing season.
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