Plant White Swan Coneflower in well-drained soil with full sun exposure. Space plants 18-24 inches apart. Sow seeds indoors 6-8 weeks before the last frost or directly outdoors after the last frost. Keep soil consistently moist until germination, then water moderately. Fertilize with a balanced fertilizer in spring. Deadhead spent blooms to encourage more flowers. Divide clumps every 3-4 years in early spring to maintain vigor.