Rhododendron arboreum, commonly known as Tree Rhododendron, Gurans, or Burans, is an evergreen shrub native to the Himalayas and associated mountain ranges in Southern Asia, including India, Nepal, Bhutan, and parts of China. It thrives in montane forests, often at altitudes of 1,200 to 3,600 meters, where it is a dominant species in rhododendron and mixed coniferous forests. The Tree Rhododendron can grow slowly to a height of 12-36 feet (3.7-11 meters) and a width of 10-15 feet (3-4.6 meters), with a dense, rounded habit. Its leaves are large, leathery, and dark green, providing a lush backdrop for the spectacular blooms. The flowers are typically bright red, but can also be pink or white, and are very showy, blooming in clusters from late winter to early spring.

The Tree Rhododendron is valued for its striking flowers and as a source of nectar for pollinators. It is used in gardens and parks for ornamental purposes, and in larger landscapes, it can serve as a privacy screen or windbreak. This species prefers acidic, well-drained soils, and while it tolerates part shade, it will flower more abundantly in areas with dappled sunlight. It requires consistent moisture, but cannot tolerate waterlogged conditions. Rhododendron arboreum is susceptible to various pests and diseases, including root rot, lace bugs, and rhododendron borers. It is also potentially invasive outside its native range, so gardeners should consult local regulations before planting.CC BY-SA 4.0