Which plant is commonly known as Rose-of-Sharon?

The plant commonly known as Rose-of-Sharon is Hibiscus syriacus. This deciduous shrub is appreciated for its striking flowers, which can come in a range of colors including white, pink, and purple. It typically blooms in late summer, providing a burst of color when many other plants have finished flowering. Rose-of-Sharon is valued in landscaping for its ability to thrive in a variety of soil conditions, its drought tolerance, and its relatively low maintenance needs.

The other options listed are not commonly associated with the name Rose-of-Sharon. Hydrangea macrophylla refers to bigleaf hydrangeas, known for their large, showy blooms but are distinct from the characteristics of Rose-of-Sharon. Fothergilla sp., known for its fragrant flowers and striking fall foliage, is a completely different type of shrub. Gardenia jasminoides, or gardenia, is cherished for its creamy white flowers and aromatic scent, but does not share the same traits or classification as Hibiscus syriacus. Understanding these distinctions helps clarify why Hibiscus syriacus is the correct identification for the name Rose-of-Sharon.