Anderson managed Queens Gardens within the parameters for which it was established as a trial garden for tropical economic plants. Some of the earliest recorded exotic fruit plantings included an acre of grape vines, along with cocoa nut trees (1896), coffee (1889), breadfruit (1899) and mangoes. Timber species included mahogany (1887), hoop pines and red cedar (1892). The majority of tropical tree species were planted around the perimeter of the gardens and included various figs, rain trees and an avenue of black bean.