Keep the soil consistently moist but not waterlogged. Water thoroughly when the top inch of soil feels dry to the touch. Riverside windflowers prefer moist conditions, especially during their active growing season.

Reduce watering slightly in late summer or early fall as the plant begins to go dormant.

Deadhead spent flowers to encourage further blooming and maintain a tidy appearance. Remove any yellowing or dead foliage at the end of the growing season.

Pruning is generally minimal; focus on tidying up the plant as needed to maintain its shape and health.

Riverside windflowers can be propagated by division in early spring or fall. Carefully separate established clumps, ensuring each division has roots and shoots.

Seeds can also be sown outdoors in autumn for natural stratification or indoors in early spring, though flowering may take longer.

This plant generally prefers to be left undisturbed. If repotting is necessary, typically for container-grown specimens, do so in early spring before new growth emerges.

Use a well-draining potting mix and choose a pot that is only slightly larger than the current root ball.