Buddleja davidii, commonly known as the butterfly bush, is a flowering plant native to China. It is well-known for its long, arching spikes of fragrant flowers that attract butterflies and other pollinators. The plant can grow up to 10 feet tall and is often used in gardens for its ornamental value and ability to thrive in various soil types. This deciduous shrub blooms from summer to fall, producing clusters of purple, pink, or white flowers. Buddleja davidii is also considered invasive in some regions, as it can spread rapidly and outcompete native plants. Proper management is essential to prevent its overgrowth in natural habitats.