Tajima Kogen Botanical Garden is a municipal botanical garden located in Kami Town, Mikata District, Hyogo Prefecture. Situated at an elevation of approximately 680 meters, it lies within the Hyonosen-Ushiroyama-Nagisan Quasi-National Park. Established on June 15, 1997, the garden is surrounded by beautiful highland scenery and has been ranked first in Hyogo Prefecture’s list of 100 Best Tourist Attractions.
With an area of approximately 17 hectares, Tajima Kogen Botanical Garden is dedicated to nature conservation and the appreciation of native vegetation. Its diverse plant communities include species growing at the northern or southern limits of their natural ranges, alpine plants found at unusually low elevations, and lowland plants growing at unusually high elevations.
A wetland area is sustained by an abundant natural spring that produces approximately 5,000 tons of water per day. More than 2,000 species of naturally growing plants have been recorded in the garden, and visitors can observe around 300 additional plant varieties. This remarkable diversity makes the garden an excellent destination for nature lovers and anyone interested in the ecology of Japan’s highlands.
The garden was created in the Tadorokawa Plain area, known as Tadorokawa-daira, where rich vegetation and plentiful spring water support a distinctive natural environment. The area is part of the Hyonosen-Ushiroyama-Nagisan Quasi-National Park and is celebrated for its scenic beauty.
One of the most remarkable features of the area is the Wachi Great Katsura Tree, believed to be more than 1,000 years old. Extensive woodland and valuable native vegetation remain in a largely natural state. The botanical garden was established to protect this precious environment while allowing visitors to experience its beauty.
At an elevation of approximately 680 meters, the garden combines protected natural woodland with areas carefully developed for visitors. The landscape has been arranged to make the most of the existing environment rather than replace it.
Two ponds and several wetland areas provide habitats for a variety of wildlife, including dragonflies and wild birds. The combination of forests, water, wetlands, and seasonal flowers offers a peaceful setting for walking, observing nature, and enjoying the changing seasons.
Sen’nensui, meaning “Thousand-Year Water,” is a natural spring that supplies approximately 5,000 tons of water each day. Its clear, plentiful water nourishes the surrounding vegetation and supports the garden’s rich ecosystem.
Local tradition holds that the Wachi Great Katsura Tree draws this water from Mount Tadorokawa. The spring has flowed continuously since ancient times, and its water remains cool even in summer, with a temperature of around 10°C. It is essential to the area’s plants, wildlife, and local environment.
The Wachi Great Katsura Tree, known in Japanese as Wachi no O-katsura, is one of the garden’s most impressive natural landmarks. Estimated to be more than 1,000 years old, it stands approximately 39 meters tall and has a trunk circumference of about 15 meters. It is protected as a Hyogo Prefecture Natural Monument.
The tree stands at an elevation of approximately 700 meters in Tadorokawa-daira, where its roots spread across a stream fed by Sen’nensui. This stream forms the headwaters of the Kosaka River. Water flowing beneath and around the enormous roots creates the extraordinary impression that the spring emerges directly from the base of the tree.
Smaller trunks and clusters of growth surround the main trunk, adding to the tree’s imposing appearance. The combination of the ancient tree, its intricate roots, and the clear flowing water creates an atmosphere of mystery and natural wonder. The tree has also been included in Tajima’s list of 100 Great Trees.
The garden’s wetland area offers beautiful scenery and an opportunity to observe distinctive plant communities. Clusters of plants such as otakara-ko and loosestrife grow here, while species from different climatic ranges meet in this unusual environment.
This naturally styled Western garden features views of the surrounding mountain ridges. It provides a different landscape within the broader woodland setting and is a pleasant place to enjoy the highland scenery.
Yawaraga Pond is a scenic water feature that blends harmoniously with the surrounding natural landscape. The pond adds to the garden’s tranquil atmosphere and offers another place to pause during a walk.
The Lawn Stage is an open event space used for various activities and gatherings. Its spacious setting allows visitors to enjoy events surrounded by the highland environment.
The Terrace Garden is a woodland terrace where visitors can enjoy takeout food and participate in gardening classes. It offers a relaxing place to take a break while surrounded by nature.
The garden’s restaurant, Hütte Brunnen, serves dishes prepared with local ingredients, including Tajima beef. The restaurant also highlights the area’s famous spring water, Sen’nensui. With approximately 170 square meters of space and seating for around 70 guests, it provides a comfortable place to enjoy a meal during a visit.
Elevation: Approximately 680 meters.
Total area: Approximately 17 hectares.
Native plant diversity: More than 2,000 species of naturally growing plants have been recorded, with around 300 additional varieties available for observation.
Indoor garden atrium: Approximately 60 square meters.
Landscape ponds: Two ponds measuring approximately 150 square meters and 50 square meters.
Restaurant: Hütte Brunnen, approximately 170 square meters, with seating for around 70 people.
Tajima Kogen Botanical Garden offers a distinctive opportunity to explore the natural richness of Hyogo Prefecture’s highlands. From its diverse native plants and wetlands to the ancient Wachi Great Katsura Tree and its remarkable spring water, the garden combines botanical interest with peaceful scenery in every season.