Weigela is a beautiful and popular flowering shrub that produces stunning blooms in shades of pink, red, and white. Although it is commonly known as weigela, it is also referred to by several synonyms such as Diervilla, Weigelia, and Kolkwitzia. These names are derived from the plant's discoverers and botanists who worked together to classify and categorize it. Diervilla, in particular, is a genus of plants that encompasses the Weigela species and includes several other flowering shrubs. Regardless of the nomenclature, Weigela remains a reliable and attractive choice for gardeners looking to add color to their landscape.