The butterfly bush, scientifically known as Buddleja davidii, is a flowering shrub native to Asia and Africa. It is popular in gardens for its long, fragrant flower spikes that attract butterflies and other pollinators. The plant can grow up to 10 feet tall and blooms from summer to fall, producing clusters of small flowers in various colors, including purple, pink, and white. This hardy shrub thrives in well-drained soil and full sun, making it easy to grow in many climates. However, it can become invasive in some areas, so it's important to manage its growth responsibly. The butterfly bush is often used in landscaping to enhance biodiversity and provide habitat for wildlife.