Sata Former Medicinal Garden is a historic site in Sata-Izashiki, Minamiosumi Town, Kimotsuki District, Kagoshima Prefecture. It preserves the remains of a medicinal plant garden established by the Satsuma Domain during the Edo period (1603–1868).
Located near Cape Sata, the garden benefited from the area’s warm subtropical climate and fertile volcanic soil. These conditions made it possible to cultivate unusual plants from southern regions, including medicinal herbs and tropical fruit trees. The garden is an important historical reminder of the Satsuma Domain’s efforts to cultivate plants for medicinal and research purposes.
The origins of Sata Medicinal Garden date back to 1687 (Jokyo 4), when Niiro Tokimasu presented longan trees to the lord of the Satsuma Domain. The trees were planted in this area and became the starting point for the garden’s development.
During the Horeki and Meiwa eras (1751–1771), Hishikari Bisen, a chief retainer of the domain, further developed the site by planting medicinal herbs and trees. The garden was managed by appointed caretakers, who looked after the plants and facilities until the Meiji Restoration in 1868.
The garden was known for cultivating tropical plants that were unusual in other parts of Japan. Its location in the warm southern part of the Osumi Peninsula made it suitable for growing species that required a mild climate.
Historically, the medicinal garden consisted of two separate locations in the area southwest of the Izashiki settlement: Horikiri and Kaminosono-daira.
The Horikiri site is the main area now known as Sata Former Medicinal Garden. It originally covered approximately 800 tsubo, or about 2,645 square meters.
A low hill rises along its northwestern side, while the southeastern foot of the hill and the flat ground to the east were used for growing longan trees and other plants.
The historic designation records that 28 longan trees remained at the site and continued to produce fruit each year. Other plants recorded there included lychee, Japanese citrus, akatetsu (a tropical tree), and Indian rubber trees.
The former caretaker’s residence and small storage buildings were also recorded as surviving within the garden, providing evidence of how the site was managed.
The second site, Kaminosono-daira, served as a branch garden of Horikiri. Its original area is not known.
At the time of the historic designation, three longan trees remained at this site. Together, the two locations illustrate the former scale of the Satsuma Domain’s medicinal plant cultivation in the Sata area.
Longan was one of the garden’s most important plants. Its round fruits were valued for both medicinal and culinary purposes, and the trees remain a distinctive reminder of the garden’s history.
Other plants recorded in historical descriptions include lychee, akatetsu, Indian rubber trees, and Japanese citrus. Additional species associated with the site include rose apple, guava, and giant taro, also known as elephant ear.
These plants reflect the garden’s role as a place for cultivating medicinal and useful species from warm southern regions. The variety of tropical and subtropical plants was unusual for Japan and contributed to the garden’s historical importance.
The Satsuma Domain established medicinal gardens as part of its efforts to cultivate plants that could be used for medicine and other practical purposes.
Medicinal plants were introduced from distant regions, including areas of the West, and cultivated for research and experimentation. The warm climate and fertile volcanic soil around Cape Sata supported the growth of a wide range of plants that could not easily be cultivated in colder parts of Japan.
Sata Medicinal Garden remained in use until the end of the Edo period. It forms part of the history of medicinal plant cultivation and medical research undertaken by the Satsuma Domain.
Sata Former Medicinal Garden was designated a National Historic Site of Japan on October 19, 1932 (Showa 7).
The designation recognizes the garden’s historical value as a rare surviving example of an Edo-period medicinal plant garden. Its remains provide evidence of the plants cultivated by the Satsuma Domain and the methods used to manage the garden.
Unlike many former medicinal gardens that have disappeared or survive only as traces in the landscape, Sata retains features that help visitors imagine its original appearance.
Cape Sata lies close to the 31st parallel north and has a warm, subtropical climate. The mild temperatures allowed horticulturists in the Edo period to grow a variety of unusual plants and medicinal herbs.
The area’s fertile volcanic soil further supported cultivation. These natural conditions were important factors in the development of the garden and explain why the Satsuma Domain selected this southern location for growing tropical plants.
Today, the surviving trees and vegetation provide a glimpse of the distinctive plant environment that made the garden possible.
Sata Former Medicinal Garden is located in Sata-Izashiki, Minamiosumi Town, on the southern Osumi Peninsula. It can be visited as part of a sightseeing trip to Cape Sata and the surrounding area.
Admission is free, and the site is open at all times. Visitors can walk around the historic garden and observe the surviving plants while learning about the history of medicinal plant cultivation in the Satsuma Domain.
Sata Former Medicinal Garden is a rare historic site that preserves the memory of the Satsuma Domain’s efforts to cultivate medicinal and tropical plants during the Edo period.
Its origins date back to the planting of longan trees in 1687, followed by the development of the garden during the Horeki and Meiwa eras. The two former garden sites, the surviving longan trees, and the records of other tropical plants provide valuable insight into the history of horticulture and medical research in southern Japan.
For visitors exploring the Osumi Peninsula, the garden offers a quieter and more historical experience than the dramatic coastal scenery of nearby Cape Sata. It is a place where the natural advantages of Kagoshima’s subtropical climate and the knowledge of Edo-period horticulturists can still be appreciated.