Salt-Pickled Cherry Leaf

Salt-pickled cherry leaves are produced by harvesting young Oshima Cherry leaves from May through August, layering them with salt in barrels, and curing them through autumn into early winter (October–January). The salting process triggers enzymatic release of coumarin from coumarin-glucoside precursors in the leaf, producing the distinctive sweet-hay sakura aroma that does not exist in fresh cherry leaves.

The Oshima Cherry (Prunus speciosa) is botanically distinct from the related Prunus yedoensis (Yoshino cherry) — the species behind most cosmetic-grade Prunus Yedoensis Leaf Extract and Prunus Yedoensis Flower Extract preparations. The two species play different roles: Oshima for traditional food use, Yoshino for ornamental and cosmetic applications.

The dominant application is sakura-mochi — both the Kantō (Chōmeiji) and Kansai (Dōmyōji) styles wrap the rice cake in a salt-cured leaf. The leaf is normally eaten with the cake; some traditional households remove the leaf before consumption.

Beyond sakura-mochi, the leaves appear in seasonal wagashi, are minced into doughs for sakura-flavored bread and Western-style confectionery, and are used as a visual presentation element alongside salted cherry blossoms (sakura no shiozuke). Industrial users typically procure 1 bundle (50 leaves) up to 100+ bundles depending on application scale.

Traditional salt-preserved food regulated under the Food Sanitation Act. Salt content typically functions as the primary preservation mechanism.

Source-area branding (Matsuzaki, Izu) is handled as descriptive production-region context. The cosmetic extract preparations from the related Prunus yedoensis species are separately regulated under the JSCI dictionary.