Keep soil consistently moist, especially during dry periods and in full sun. Avoid waterlogging, as this can lead to root rot. Established plants tolerate short dry spells but perform best with regular watering to support their lush foliage and abundant blooms.

Cut back spent flower stalks after blooming to prevent unwanted self-seeding and maintain a tidy appearance. In late autumn, after the foliage has died back, or in early spring before new growth begins, cut the entire plant back to ground level. This encourages fresh, strong growth and helps manage the plant's size and vigor.

Easily propagated by dividing mature clumps in early spring or autumn when the plant is dormant. Carefully lift the plant, separate sections with a sharp spade, ensuring each has roots and shoots. Seeds can also be sown in autumn, requiring cold stratification for successful germination. Division is generally the quickest and most reliable method for maintaining varietal characteristics.

Aruncus dioicus is typically grown in the ground due to its substantial size and deep root system. If cultivated in a very large container, repotting or dividing every few years may be necessary to refresh the potting medium and manage the plant's overall size. Choose a container only slightly larger than the previous one to avoid overwatering issues.