Yamanokami no Fuji: A Wild Wisteria Designated as Japan's Natural Monument
At the foot of Mt. Mitsutoge, in the northern reaches of Fujiyoshida City in Yamanashi Prefecture, stands a small, quiet shrine known as Yamagami-sha. Within its modest forested grounds grow two extraordinary wisteria trees that have captivated botanists and pilgrims alike for nearly a century. Known collectively as "Yamanokami no Fuji" (literally, "the wisteria of the mountain god"), these ancient vines were designated a National Natural Monument by the Japanese government on January 31, 1928. What makes them truly rare is not merely their age but their origin: unlike most large old wisterias in Japan, these specimens grew naturally in the wild, never planted or cultivated by human hands.
What is Yamanokami no Fuji?
Yamanokami no Fuji refers to two wild Japanese wisteria (Wisteria floribunda, locally called noda-fuji) growing within the precincts of Yamagami Shrine in the Kamikureji district of Fujiyoshida City. The name literally translates to "the wisteria of the mountain god," referring to the shrine's enshrined deity. At the time of designation in 1928, the grove consisted of three trees, but only two specimens remain today. They are among just eight climbing-vine plants in all of Japan to have been granted national natural monument status, and seven of those eight are Wisteria floribunda — making this group of designated wisterias an especially treasured botanical category.
The first tree (commonly called the "A tree") grows on a gentle slope to the northeast of the main shrine hall. Its root base measures approximately 3.1 meters in circumference. After successive typhoon damage, custodians built a sturdy iron support pergola so that the wisteria's twisting trunk could continue to thrive on the hillside. The second tree (the "B tree") rises on the north side of the shrine. From a base with a root circumference of about 3.6 meters, it divides into three trunks roughly 70 centimeters above the ground, then climbs eight meters skyward where it intertwines with the massive trunk of an itaya maple — itself a notable tree.
Why It Was Designated a Natural Monument
The original survey that led to the 1928 designation described these vines as enormous wild wisterias growing freely in the mountain forest. The most prominent specimen at that time had a root circumference of roughly 2.5 meters and a trunk girth of about 1.9 meters at chest height. It wound itself around a great itaya maple and spread out to form what the report called a "natural wisteria arbor." During the blooming season, passengers aboard the Fuji Sanroku Electric Railway — today's Fujikyu Line, which still runs just east of the shrine — could glimpse the cascading purple blooms from their train windows, and the sight was said to "captivate the eyes of all who saw it."
Beyond the impressive size of the trunks, the deeper scholarly value lies in the trees' wild origin. Most famous wisterias in Japan — including celebrated specimens at temples, gardens, and parks — were deliberately planted and pruned over generations to encourage their dramatic growth. Yamanokami no Fuji is different: it is a self-seeded, naturally grown population of Wisteria floribunda that nevertheless reached extraordinary proportions in the wild. This makes the grove a precious natural reference for understanding how the species behaves outside of human cultivation, and it is the principal reason the site retains its protected status.
Highlights and Things to See
Visitors who climb the modest stone steps leading up to Yamagami Shrine encounter a place that feels worlds removed from the bustle of Mt. Fuji tourism, even though it sits only a short distance from major sightseeing areas. The forested precinct is small, and yet every element rewards careful observation.
The first tree's iron pergola, with its meticulously fitted stone retaining walls, is a quiet monument to a century of stewardship. A stone tablet inscribed with the calligraphy "Yamagami-fuji" is set into the base, recording the trees' identity for visitors who arrive long after the designation. In spring, the blossoms — modest in length compared to some southern wisterias, with most flower clusters around 15 centimeters — drape gently from the supporting framework, creating a serene cascade of pale violet against the forest backdrop.
The second tree, climbing the trunk of the great itaya maple, offers a different kind of spectacle. The maple itself is considered exceptional: standing roughly 24 meters tall with a chest-height trunk girth of about 3.05 meters, it is the only itaya maple of such size confirmed in Yamanashi Prefecture and has been designated a natural monument by Fujiyoshida City in its own right. Together, the maple and the wisteria form a living tableau — host and climber, native tree and native vine — that has stood undisturbed for far longer than anyone can precisely date.
Wisteria viewers will also notice the two distinct flower forms. Wisteria floribunda twines in a right-handed (clockwise) direction, which is the opposite of the closely related Yamafuji (Wisteria brachybotrys) found further west. Observing the spiraling trunks here is a quiet lesson in Japanese botany.
Visitor Information
The viewing season runs from mid-April through May, with the peak generally falling in early May. By the end of May, the blooms have usually finished. Because the shrine is small and the trees are protected by guardrails, visitors are asked to stay on the path and refrain from touching the trunks or supports. There is no admission fee, no staff on site, and no formal opening hours; the precinct is part of a working community shrine, so quiet respect is appreciated at all times.
From central Tokyo, the easiest route is to take a JR train or highway bus to Otsuki, then transfer to the Fujikyu Line bound for Kawaguchiko or Mt. Fuji Station. Alight at Kotobuki Station, then board the Fujikyu Town Sneaker community bus on the Kamikureji-Akemi loop. Get off at the Shiraitocho stop and walk roughly five minutes to the shrine. Travelers driving from the Chuo Expressway can exit at Kawaguchiko or Fujiyoshida and reach the site in about fifteen minutes.
Around the Area
Yamanokami no Fuji sits within easy reach of some of central Japan's most beloved sights. Just a short drive south is Arakurayama Sengen Park, home to the Chureito Pagoda — the iconic view of a red five-storied pagoda framing Mt. Fuji that has appeared on countless travel posters. The grand Kitaguchi Hongu Fuji Sengen Shrine, the traditional starting point of the Yoshida-guchi climbing trail to the summit of Mt. Fuji, is also nearby and well worth a visit for its towering cedars and historic buildings.
Hikers may enjoy ascending Mt. Mitsutoge, one of the "Hundred Famous Mountains of Yamanashi" and one of the "Two Hundred Famous Mountains of Japan," whose southern slopes hold the shrine. Mt. Mitsutoge is celebrated for offering one of the finest unobstructed views of Mt. Fuji in the entire region. For more leisurely visitors, the historic main street of Fujiyoshida and its famous Yoshida udon noodle shops are only minutes away, and Lake Kawaguchi — one of the Fuji Five Lakes — is a short drive west.
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Q&A
- When is the best time to see the wisteria in bloom?
- The blossoms generally appear from mid-April to late May, with the peak around early May. Bloom timing varies year to year, so checking the Fujiyoshida City tourism website's flower bulletin before visiting is recommended.
- What makes these wisterias different from other famous wisterias in Japan?
- Most celebrated wisterias in Japan were intentionally planted and cultivated. Yamanokami no Fuji is one of the very few large wild wisterias designated nationally, having grown to extraordinary size in its natural forest setting.
- Why are the flower clusters relatively short?
- Although Wisteria floribunda is the long-clustered species, the racemes of these particular trees average around 15 centimeters. Some references record clusters up to 50 centimeters during peak years. The growth pattern likely reflects natural conditions and the trees' advanced age.
- Is there a connection to the shrine deity?
- The site is dedicated to "Yama-no-Kami," the mountain god — a guardian spirit of forests and hunting traditionally venerated across Japan. Although the precise founding date and full history of this particular shrine are not recorded, the wisterias have come to be regarded as a sacred natural feature of the precinct.
- Can the wisteria be seen from the train?
- Historical records from the early Showa period note that travelers on the Fuji Sanroku Electric Railway — today's Fujikyu Line, which still passes just east of the shrine — could see the wisterias in bloom from the carriages. Today the view is mostly obscured by other vegetation, so a short walk to the shrine is recommended.
Basic Information
| Name | Yamanokami no Fuji (山ノ神のフジ) |
|---|---|
| Designation | National Natural Monument (Designated January 31, 1928 / Showa 3) |
| Species | Wisteria floribunda (Japanese wisteria / Noda-fuji) |
| Location | Kamikureji 2114, Fujiyoshida City, Yamanashi Prefecture |
| Number of Trees | Two specimens (originally three at the time of designation) |
| Owner / Custodian | Yamagami-sha (the local shrine) |
| Best Viewing Season | Mid-April to late May; peak around early May |
| Access | About 5 min walk from Shiraitocho bus stop (Fujikyu Town Sneaker, Kamikureji-Akemi loop) from Kotobuki Station on the Fujikyu Line |
| Admission | Free |
References
- Cultural Heritage Online — Yamanokami no Fuji (Agency for Cultural Affairs)
- https://bunka.nii.ac.jp/heritages/detail/210120
- National Designated Cultural Properties Database (Agency for Cultural Affairs)
- https://kunishitei.bunka.go.jp/bsys/maindetails/401/1097
- Fujiyoshida City Official Website — Nationally Designated Cultural Properties
- https://www.city.fujiyoshida.yamanashi.jp/page/1096.html
- Yamanashi Prefecture Cultural Heritage Guide — Natural Monuments
- https://www.pref.yamanashi.jp/bunka/bunkazaihogo/kinenbutsu.html
- Fujiyoshida City Tourism Guide — Flower Viewing Information
- https://fujiyoshida.net/feature/flower/flower
- Wikipedia (Japanese) — Yamanokami no Fuji
- https://ja.wikipedia.org/wiki/山ノ神のフジ
Last verified: 2026.05.14