Which of the following is the common name for Wisteria frutescens?

The common name for Wisteria frutescens is indeed American Wisteria. This plant is a deciduous vine native to the eastern United States. Wisteria frutescens is known for its beautiful, fragrant clusters of blue to violet flowers that typically bloom in the spring. It is less aggressive than its cousin, the Asian wisterias, making it a more manageable choice for gardeners.

In contrast, the other options refer to entirely different plants. Flowering Kale is a type of ornamental cabbage known for its colorful foliage. English Ivy is a climbing or ground-covering vine known for its distinctive leaf shape and is often used in landscaping for its ability to tolerate a variety of conditions. Climbing Hydrangea refers to a completely different species, which is a vine that produces large clusters of white flowers and differs significantly from Wisteria species in both growth habit and flower characteristics. By recognizing these differences, it becomes clear why American Wisteria is the accurate common name for Wisteria frutescens.