Key West Tropical Forest and Botanical Garden on Stock Island in Key West, Florida, is a frost-free arboretum and botanical garden that supports a rich collection of tropical and subtropical trees, shrubs, and palms. It is especially notable for its concentration of champion and challenger trees recognized by the National Champion Tree system, including national champions such as locust-berry and wild dilly and Florida champions such as barringtonia and Cuban lignum vitae. Alongside these prize specimens, it preserves a broad mix of native and imported plants tied to the Florida Keys and the wider tropics, serving as both a display garden and a living record of the region’s tropical forest landscape.