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Mentha japonica is a rare perennial mint from wetlands in Hokkaido and Honshu, Japan, grown as an aromatic herb and traditional remedy. Its key to growing is consistently moist soil in a cool, humid spot, since it spreads by rhizomes.
Mentha japonica is a species of plant in the family Lamiaceae, endemic to the islands of Hokkaido and Honshu, Japan. Initially described as Micromeria japonica by Friedrich Anton Wilhelm Miquel, it was first identified under its present name by Japanese botanist Tomitaro Makino in 1906. A relatively rare plant, it is classified by the Japanese Ministry of Environment as a Near Threatened species.
Mentha japonica is endemic to the islands of Hokkaido and Honshu within its native range. It occupies lowland & mountain wetlands, and blooms from August to October in Japan.
Like other mints, Mentha japonica is used as both an aromatic herb and as a traditional remedy. Topical ointments containing M. japonica have also been used to treat mastitis in cows.
Water mint · Wild mint · Australian Mint · Hioi · Mentha gattefossei · Mentha grandiflora · Mentha micrantha · Peppermint · Pennyroyal · Mint · Mentha royleana · Spearmint
Text excerpted from the Wikipedia article Mentha japonica by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
Pet safety from the ASPCA toxic and non-toxic plant lists.
