Buddleja crispa, commonly known as Himalayan Butterfly Bush, is a deciduous shrub native to rocky outcrops and scrubby hillsides in the Himalayas and highlands of South and Central Asia. It typically grows to a height of 3.5 meters with a wider spread, exhibiting a bushy habit. The young twigs and both sides of the leaves are covered with a distinctive white or tawny loose felt, which adds to its textural interest. The shrub produces fragrant flowers that form terminal panicles 7–10 cm long by 5 cm wide. The corolla is lilac with an orange throat, and the flowers bloom from February to August, providing a long season of interest. The flowers are particularly attractive to butterflies, hence the common name.

Buddleja crispa is valued for its unique felted foliage and attractive flowers, which can add a touch of the exotic to gardens. It is often grown against a wall where it can bask in full sun, which helps to improve flowering and overall plant vigor. While it requires well-drained soil to thrive, it is not entirely cold-hardy and is best suited to USDA zones 8–9. In cultivation, it does best in full sun with medium amounts of water and prefers soils with medium drainage. This species can be susceptible to root rot if overwatered or planted in poorly drained soils. It may also require protection or a sheltered position in colder climates to survive winter temperatures.CC BY-SA 4.0