Proper maintenance and management of landscape infrastructure in Phoenix, especially large-scale landscapes, is a complicated and very expensive endeavor. One never knows what challenges lie just around the corner, whether minor issues or major catastrophes. Some are no doubt unavoidable surprises; however, most may be foreseen and planned for, both technically and financially. A landscape’s design, configuration of biological and hardscape components, plant palette, growth stage and age, and maintenance history represent an assemblage of landscape “hieroglyphs” capable of being decoded by the trained and experienced professional eye. What they mean is critically important for those responsible for managing such a valuable asset and financially providing for its sustainability. A Tree Theory Landscape Reserve Study™ considers these and other factors to project needed component maintenance, repair, and replacement, as well as their associated costs. These then become an essential financial planning tool to help ensure future funding capacity to maintain and properly manage valuable landscape infrastructure.