Orchid Satin Rose of Sharon can reach up to 10 feet tall and 6 feet wide, and it features large, pink blooms with red eye accents. (Photo by MSU Extension Service/Gary Bachman) Alt text: Nearly a dozen light-pink flowers with dark-pink centers grow in a large circular container.
by Bronwynne Bailey
In this edition of our hibiscus series (see previous columns at: hardy hibiscus, tropical hibiscus) we focus on the Rose of Sharon. Rose of Sharon is an old-time landscape and garden deciduous plant. Many folks mistakenly call Rose of Sharon a hollyhock, as the flowers do look similar. They are big and bold in the landscape, and I’ve seen many planted in unfortunate locations, blocking windows, doors and porches.
Rose of Sharon (Hibiscus syriacus)
The Rose of Sharon enchants with its single or double flowers that resemble hibiscus blooms but carry a distinct charm. Colors range from pristine whites to shades of pink, purple, and blue.
Colors and Varieties
The Satin Series (by Proven Winners) is a sterile, seedless selection, which means I don’t have to weed out seedlings every year. Color choices include Purple Satin, Azurri Blue Satin, Orchid Satin, and Ruffled Satin. Orchid Satin has large, beautiful, single orchid-pink blooms with a dramatic red eye accent. This plant has the potential to be medium-sized with a mature height greater than 10 feet and a 4- to 6-foot spread.
Growth Habits
The Rose of Sharon is a deciduous shrub that boasts a multi-stemmed and upright growth habit. Its branches gracefully arch, creating a pleasing silhouette. During late summer, when many other plants are winding down, the Rose of Sharon steals the spotlight with its profusion of blooms. Its foliage adds to the appeal, providing a verdant backdrop to the stunning flowers.
Soil Preferences
The Rose of Sharon is adaptable to various soil types but thrives in well-drained, loamy soil. Incorporate organic matter into the planting area to enhance fertility and drainage. While these plants tolerate a range of soil pH, a slightly acidic to neutral pH is optimal.
Planting Depth & Spacing
When planting a Rose of Sharon, aim for a planting depth that aligns with the root ball’s level with the soil surface. Spacing is crucial to allow for proper growth and prevent competition for nutrients. Provide at least 6 to 8 feet between plants to allow them to reach their full potential.
Watering
Water deeply but less frequently to encourage deep, healthy roots. Rose of Sharon is drought-tolerant once established.
Fertilizing
Fertilize in early spring by applying a granular rose fertilizer according to the label. Reapply each spring.
Pruning
Rose of Sharon needs little to no regular pruning. If you wish to prune, however, late winter or early spring is the best time to do so. Up to one-third of the plant can be removed at a time.
