Like other Rudbeckia spp., the showy flowerheads of Sullivant's Coneflower attract their fair share of pollinating insects; both nectar and pollen are available as floral rewards. Floral insect visitors include bees (leaf-cutting bees, Andrenid bees, Halictid bees), small butterflies and skippers, various flies (especially Syrphid flies and bee flies), and sometimes beetles (soldier beetles, weevils). Several moth caterpillars are known to feed on Rudbeckia spp.; they are usually found on the flowerheads, and include such species as Chlorochlamys chloroleuca (Blackberry Looper Moth), Eupithecia miserulata (Common Eupithecia), Synchlora aerata (Wavy-Lined Emerald), and Homoeosoma electellum (Sunflower Moth). Mammalian herbivores that browse on the foliage include deer, rabbits, groundhogs, cattle, and other farm animals.