(Rose of Sharon) Seedless Rose of Sharon are now an option! Purple Satin® Hibiscus is one of a select few Rose of Sharon that has been bred to be seedless. No more seedlings popping up in your yard and landscape. Standing 8-12 feet tall and 6-8 feet wide, Purple Satin® puts on a proud show of color from midsummer into the fall. The large blooms of Purple Satin® Hibiscus are a rich purple color with a prominent red eye. Planted in full sun, Purple Satin® has a wide range of garden uses such as flowering hedges, privacy screens, or as a beautiful specimen for your landscape or garden. This deer and rabbit resistant variety is also a great butterfly attractor. A Proven Winners® ColorChoice® Flowering Shrub.