Plant Color Coded® Orange You Awesome Coneflower in well-drained soil with full sun exposure. Space plants 18-24 inches apart. Water regularly during the first growing season to establish a deep, extensive root system. Once established, water as needed, allowing the soil to dry between waterings. Fertilize in early spring with a balanced, slow-release fertilizer. Deadhead spent blooms to encourage continuous flowering. Divide clumps every 3-4 years in early spring to maintain vigor.