Arboretum Trsteno is a five-century known garden - "The park of the Gucetic earls". It is situated near Dubrovnik, on the south of Trsteno, on terraces which come down to the sea, and on the west it is from the Trsteno Potok. It has about 25.5 hectares, the eastern part is occupied by gothic-renaissance park, and the middle part by a nursery - garden and olive plantations, in the south it is the new park Drvarica where there are untouched quarries, the western part is overgrown with forest of Pinus halepensis and with Cupressus sempervirens and Quercus pubescens.
At the beginning of 1948 it was protected as a natural rarity, and in 1962 as a monument of garden architecture and a collection of decorative trees and bushes. It was established in XV century by the old estate-owners - Gucetic from Dubrovnik.
In 1494 Ivan Marinov Gucetic ordered stony parts, ornaments and stony house furniture and more than 50 stony cogs at stone-cutters Bartula and Fran Karlic from Korcula. There is a stony slab from 1502 with dimensions 160 x 25 cm which is walled in the transversal stone from the eastern side of the castle, it is written in Latin and it gives an evidence of this park and its good arrangement in the distant 1502.
The new park on Drvarica was garden shaped at the end of XIX and at the beginning of XX century in a romantic style. At the entrance of the new park, a little statue of St. Nicole is excelled, there is a round box-wood hedge in the middle of the park into which a few Dasylirions grow.
In the spirit of the new time, today the Arboretum of the Croatian Academy of Arts and Science in Trsteno is open for visitors and for all social ranks and it is used for cultural and historic purposes as a garden architectonic monument of past centuries and a collection of decorative trees and bushes, and also for scientific, searching, educational, tourist, recreate and esthetic purposes.