Family: Fabaceae
Common names: Divi divi, Cascalote, American sumac, Guaracabuya, Guatapana, Nacascol, Tan yong, Watapana
The Divi-divi tree might be native to the Americas, but I photographed it in a small town called Manjapra in Ernakulam district of Kerala. The interesting fact is that my cousin knew the exact name of this tree growing in their house.
Usually, when I ask people about plants in their house, they would just say it’s a shade tree, or that they got it from so-and-so nursery. I was very happy to get the name of the tree instantly from him, without using any of my Plant ID apps.
Divi-divi is native to the Caribbean, Central America, northern South America, and coastal regions of northern South America. It naturally grows in hot, dry tropical climates, especially along seashores and in arid, windy areas.
It is well adapted to strong winds, salty air, and poor soils, and is often seen contorted into dangerously leaning shapes. But in areas without strong winds, this tree gets a beautiful, umbrella-like canopy.
Tree Characteristics
Divi-divi is a small to medium-sized tree that usually grows 6 to 10 meters tall, with a spread of 6 to 12 meters. In very windy coastal areas, the tree often develops a permanently bent or wind-swept shape.
The trunk is relatively short and can reach about 30 to 40 centimeters in diameter. Its bark is gray to brown, slightly rough, and becomes more fissured as the tree matures.
The root system is wide-spreading and strong, helping the tree anchor itself in sandy or rocky soils. It is known for tolerating drought and saline conditions. The roots can also help stabilize soil, especially in coastal areas where erosion is a problem.
The leaves are small, feathery, and finely divided, giving the tree a soft, airy appearance. Each leaf can be about 5 to 10 centimeters long and is made up of many tiny leaflets. When pruned, the tree produces light green colored leaves which look very pretty.
The tree produces small yellow flowers arranged in clusters, usually about 5 to 8 centimeters long. These are followed by distinctive curved, green seed pods, about 5 to 8 centimeters long, which turn dark brown as they mature and often twist into a crescent shape.
Gardening Tips
Divi-divi grows best in full sun and needs at least 6 to 8 hours of direct sunlight daily. It thrives in sandy, well-drained soils but can tolerate poor, rocky, or slightly saline soils. Good drainage is important, as the tree does not like standing water around its roots.
When planting, allow at least 6 to 8 meters of space from buildings or other large trees, since it develops a broad canopy. Although it is drought tolerant once established, young trees should be watered regularly during the first year to help develop a strong root system. After that, occasional deep watering during prolonged dry periods is enough.
Pruning can help shape the tree, especially in less windy areas where it may grow more upright. Remove weak or crossing branches to maintain structure.
Fertilization is usually not necessary in average soils, but a light application of balanced fertilizer once a year can encourage healthier growth in very poor soils. Divi-divi is generally resistant to major pests and diseases, though occasional caterpillars or scale insects may appear.
Uses of Divi-divi
Divi-divi has long been valued for its seed pods, which are rich in tannins. These tannins have been traditionally used in leather tanning and natural dye production. The pods and bark have also been used in traditional medicine in tropical regions.
In folk medicine, preparations made from the pods and bark have been used for treating diarrhea, sore throats, and skin conditions. Decoctions are sometimes used as a wash for wounds due to their astringent properties. As with all medicinal plants, internal use should be approached carefully and with proper guidance.
Ornamentally, Divi-divi is widely planted as a shade tree in coastal parks and gardens because of its sculptural, wind-shaped form. It also provides habitat and light shade for wildlife. Its tolerance to salt spray and strong winds makes it especially useful in seaside landscaping and erosion control projects.
Belonging to the Peas and Beans family of Fabaceae, the roots of this tree have nitrogen-fixing bacteriae that can improve soil quality.
Propagation
Propagation is through seeds and occasionally by cuttings.
Seeds have a hard coat and benefit from soaking in warm water for 12 to 24 hours before planting to improve germination, and they usually sprout within a few weeks in warm, well-drained soil.
Photographed at: Manjapra, Kerala
