Buddleja madagascariensis, commonly known as Smokebush or Madagascar Buddleia, is an evergreen shrub native to Madagascar, where it thrives in open woodlands and scrub areas. It typically grows to less than 4 meters (13 feet) in height and has a sparse, lax form. The plant is notable for its fragrant yellow flowers that bloom from autumn through winter, adding color and scent during a time when few other plants are in flower. The foliage is semi-evergreen in cooler climates and may drop leaves when temperatures approach freezing.

Madagascar Buddleia is valued for its long flowering season and fragrant blooms, which can attract butterflies and other pollinators. It is used in ornamental plantings in subtropical and tropical gardens, and with adequate protection, it can also be grown against south-facing walls in temperate coastal regions. It requires full sun to part shade, medium water, and well-drained soil to thrive. While it is tolerant of a range of soil types, it is intolerant of sub-zero temperatures and is rated as hardy to RHS H2, USDA zones 9 – 10. In regions where it is not invasive, it can be a beautiful addition to conservatories and greenhouses. However, it is potentially invasive in some parts of the world, including Indian Ocean islands, New Zealand, the Caribbean, and South Africa, and should be planted with caution outside its native range.CC BY-SA 4.0