This research involves the use of tree growth software and landscape visualization tools to explore future landscape management possibilities at the Flight 93 National Memorial tree grove in Stoystown, PA. The site's trees have experienced significant problems over the 10-year existence due to compacted and degraded soils, leading to stunted tree growth and in many cases high rates of tree mortality. Using a combination of a tree growth 3D modeling plugin and computer game development software, we visualized several tree mortality scenarios which were used to inform landscape grove management over the course of a 25-year maintenance plan. A pilot grove of 40 trees was selected for initial growth simulation, with each tree modeled individually to represent species and documented health characteristics. Real-time rendering game design software was used to develop photorealistic renderings in order to visualize the changes in character that occurred as a result of various growth and mortality scenarios.