Soil Properties for Urban Tree Health highlights why what’s happening belowground determines tree success aboveground. This talk explains how urban soil formation and human disturbance shape key soil properties, texture, structure, drainage, pH, organic matter, nutrients, and contaminants, and how these factors influence root growth, water uptake, and long-term tree performance. Attendees will learn how to recognize soil constraints in urban sites and use soil data and monitoring tools to make more informed decisions that support healthier, more resilient urban trees.