In this episode of Science of Arboriculture, Daniel Burcham discusses the relationship between urban soil properties and street tree performance in Singapore. Burcham’s presentation focuses on a few tropical trees such as the raintree (Samanea saman), yellow flame (Peltophorum pterocarpum), Honduras mahogany (Swietenia macrophylla), and Senegal mahogany (Khaya senegalensis). Burcham is an arboriculture researcher at the Centre for Urban Greenery and Ecology in the National Parks Board, Singapore and this presentation was given at the ISA 2011 Annual Conference in Australia.