Ardens Rose of Sharon

Ardens Rose of Sharon is an upright flowering shrub known for its large, double lilac-purple flowers with ruffled centers and darker reddish-purple markings. Its tropical-looking blooms begin appearing during summer and may continue into early fall, providing dependable color after many spring-flowering shrubs have finished blooming.

Its naturally upright growth habit makes Ardens a good choice as a specimen plant, flowering hedge, privacy screen, background shrub, or tall addition to a mixed border. Several plants can also be spaced together to create an informal flowering screen. Give each shrub enough room to reach its mature height and width so the branches can develop naturally without frequent trimming.

Butterflies, hummingbirds, bees, and other pollinators regularly visit the showy flowers. Pairing Ardens Rose of Sharon with other summer-blooming plants can help provide nectar during the hottest part of the growing season. Our guide to flowering plants and shrubs that attract pollinators includes additional choices for creating a garden that supports beneficial wildlife.

Plant Ardens Rose of Sharon in full sun for the strongest growth and heaviest flowering. It can tolerate some light shade, but plants receiving less sunlight may produce fewer blooms. Choose well-drained soil and water regularly during the first growing season while the roots become established. Once established, it generally handles Southern heat, humidity, and short dry periods well.

Apply two to three inches of mulch around the root zone to help conserve soil moisture and limit weeds. Keep the mulch several inches away from the main stems so excess moisture does not collect around the base.

Because Ardens Rose of Sharon blooms on new growth, it can be pruned in late winter or early spring before fresh leaves appear. Remove dead, damaged, weak, or crossing branches first, then lightly shape the remaining stems if necessary. Avoid severe yearly pruning because its naturally upright form is part of its landscape value.

The Royal Horticultural Society’s Ardens Rose of Sharon profile provides additional information about its double purple flowers, mature growth, sunlight needs, and preferred growing conditions.

With full sun, proper spacing, and simple seasonal care, Ardens Rose of Sharon can provide dependable late-season flowers for many years.