Buddleja × weyeriana, commonly known as Weyeriana Butterfly Bush, is a deciduous shrub resulting from the hybridization of Buddleja davidii, native to China and Japan, and Buddleja globosa, native to South America. This hybrid typically reaches a height of 5-15 feet (1.5-4.6 meters) and a width of 5-10 feet (1.5-3 meters). It is characterized by its arching branches and dense clusters of flowers that can be orange, yellow, or lavender, blooming from midsummer to early autumn. The flowers are highly attractive to butterflies and other pollinators.

The Weyeriana Butterfly Bush is valued for its unique flower coloration and extended blooming period, making it a popular choice for butterfly gardens and mixed borders. It requires full sun to part shade and well-drained soil to thrive, and while it is drought-tolerant once established, regular watering during dry periods will promote optimal growth. Pruning in late winter or early spring can help maintain a desirable shape and encourage prolific flowering. Gardeners should be cautious, as Buddleja × weyeriana can be potentially invasive in some regions, spreading through seed dispersal.CC BY-SA 4.0