A one-man mountain tea garden at 496 metres, grown without pesticides or chemical fertiliser. Five rare, aroma-driven cultivars — offered as aracha, in its unrefined state.
High in the hills of Chibayama, Tenku Farm is the work of a single grower — one who tends, harvests and processes every batch himself.
Perched above 400 metres, the garden sits in isolation. With no neighbouring tea fields, there is no spray drift — the growing environment itself is clean, not only the practice.
The grower has spent a lifetime in Japanese tea as a tea merchant, and today works the garden alone — no staff and no shortcuts, processing each lot by hand.
The farm was once certified organic under Japan’s JAS system. When the garden became the work of a single grower, the certification requirements could no longer be met, and it was let go — but the farming itself never changed. No synthetic pesticides, no chemical fertiliser, only a year-to-year devotion to the craft.
At Nagamine Seicha, we source this aracha for what it represents: independence, honesty, and tea in its simplest form.
A secluded mountain garden — cool nights, slow growth.
No neighbouring fields — an uncontaminated growing space.
Grown, harvested and finished by a single grower.
Cultivars chosen for fragrance, not for yield or umami.
Tenku Farm grows several rare, aroma-driven cultivars, each offered as aracha — crude tea in its unrefined state. Notes below describe the general character of each cultivar; final expression reflects the garden, the elevation and the grower’s hand.
A very late-season cultivar bred for fragrance. Known for a sweet, roasted aroma often likened to steamed chestnut, with a clean, well-balanced cup. Aroma and umami stand in fine harmony — a tea you do not tire of, cup after cup.
A late cultivar prized in cool, high-elevation gardens. Deep green colour, a clear infusion and a soft, refreshing depth of flavour, marked by a fresh, youthful aroma and a clear umami.
A late-season cultivar suited to sencha and to semi-fermented teas alike. Sound quality with a quietly elevated aroma — a cultivar still seldom planted. Its umami is gentle, rounded and generous.
A robust, cold-hardy cultivar with thick leaf. A well-balanced tea with a fragrance reminiscent of Yabukita and a mellow, rounded flavour.
An exceptionally late cultivar named for its cherry-leaf fragrance. A pale infusion carrying floral, faintly mentholated aromatic notes.
These five cultivars are currently held as aracha — unrefined crude tea. Finishing, blending and lot configuration are decided together with the buyer, so the tea can be shaped to its market: as single-cultivar selections, or as a single-estate blend. Pricing, minimum order and certificate of analysis are arranged to suit each destination. We welcome enquiries.
For samples, finishing options and trade terms, please contact Nagamine Seicha directly. We are glad to discuss how Tenku Farm might suit your range.
Tenku Farm sits within our wider named-producer sencha selection.