Foster Botanical Garden, measuring 13.5 acres, is one of five public botanical gardens on Oahu. It is located at 50 North Vineyard Boulevard, Honolulu, Hawaii, United States, near Chinatown at the intersection of Nu'uanu Avenue and Vineyard Boulevard. Foster is in a highly urban area with strip malls, schools, and both Buddhist and Methodist religious facilities nearby. The Garden is the oldest botanical garden in Hawaii, and listed on the National Register of Historic Places.