Plant Baby Joe Pye Weed in early spring or fall in a location with full sun to partial shade. Ensure the soil is moist, well-drained, and rich in organic matter. Space plants about 2-3 feet apart. Water regularly to keep the soil consistently moist, especially during dry spells. Fertilize in early spring with a balanced, slow-release fertilizer. Deadhead spent flowers to encourage more blooms and cut back stems to the ground in late fall or early spring to promote healthy growth.