The natural habitan of Peltophorum pterocarpum is on sandy sea shores.

Trees have flowering cycles of different length. Flowering is preceded by a flush of new leaves typically produced simultaneously on all branches and succeeding leaf fall. Pruning may induce a temporary disturbance of this cycle.

Flowers of Peltophorum pterocarpum emit fragrance at night. The main pollinators are carpenter bees ( Xylopa sp ) that nest by burrowing into hard plant material such as dead wood or bamboo. They collect pollen from the anthers by rapidly contracting flight muscles producing stong vibrations transmitted to the anthers. The audible buzz is a indication of the time spend for each floral vibration.On fresh unvisited flowers at sunrise they buzz briefly. Later in the day the bee utilizes multiples buzes and visit multiples flowers (after Raju et al. 1996 Journal for Nature Conservation 8(1):99-100)

As most members of the legume family, the tree makes root associations with bacteria able to fix atmospheric nitrogen into nitrogen assimilable by the plant. Through these interactions, nitrogen fixers are able to self-fertilize as well as to fertilize surrounding species trough the recycling of nitrogen by associated decomposers.

Peltophorum pterocarpum is a lowland species that naturally rarely occurs at an altitude above 100m. is fast growing and easily out competes alang grasses after the first year of establishment.

Peltophorum pterocarpum (Fabaceae)