Houttuynia cordata Seeds | Tea Fish Mint Tea
LATIN NAME: Houttuynia cordata
COMMON NAME: Fish Mint
Plant Profile
Known to gardeners as Fish Mint, Houttuynia cordata is a herb. Fish mint is herb that divides opinion, and heart-shaped leaves carry fine, fresh, leafy smell of stream bank. Leaves have a very long record in old practice and kitchens of the East, and plant is a fine, easy presence of moist border and the waterside. It is a plant of cool, moist, rich ground. Its appeal to pollinating insects adds a second, ecological layer to its ornamental one. Taken as a whole, it is a plant that repays a little attention many times over.
Science & Biotechnology
Fish mint (yu xing cao) is a polarising salad herb across East Asia and a listed drug of the Chinese Pharmacopoeia. Its signature volatile, decanoyl acetaldehyde (houttuynin), shows antibacterial activity in vitro, and the flavonoid fraction has been studied for anti-inflammatory and antiviral effects. The herb’s modern history carries a regulatory lesson: houttuynia injections were suspended in China in 2006 after reports of severe allergic reactions, while oral and topical traditional use continues. Its invasiveness in warm gardens is legendary — plant it where its spread is welcome or confined.
Botanists studying the Houttuynia group regularly include Houttuynia cordata in comparative work, and the species also appears in horticultural trials aimed at gardeners and growers. Fish mint is a fragrant subject of plant science, and heart-shaped leaves carry volatile compounds that give fresh, leafy smell. Species like this one find a second career as research material, especially in propagation and breeding work.
Uses & Benefits
Fish Mint works well in borders, containers and dedicated beds. Fish mint is a fine, fresh green of kitchen and stream-side garden. Heart-shaped leaves are eaten young in salads and soups of the East, carrying fine, fresh, leafy note, and leaves have a very long record in old practice as a fresh herb for warm season. Plant spreads into fine, dense mats of moist border and waterside, and white flowers are a pretty sight along the way. Thereafter it wants only the ordinary attentions any garden plant receives.
Fish mint, Yu Xing Cao, is a major Chinese heat-clearing herb for respiratory comfort, and its pungent leaves are eaten as a beloved salad in Sichuan and Vietnam; its decanoyl compounds and flavonoids are widely studied.
Growing from Seed
Starting Fish Mint from seed is simple and satisfying. Sow the seeds evenly over the surface and cover lightly in a loose, well-drained seed compost, keep the sowing evenly moist, and give the pot or tray bright light. When the young plants are big enough to handle, space them into pots or a nursery row and let them size up before their final move.
Our Take
Fish Mint has real presence in the garden without demanding much in return. Established seedlings need little beyond ordinary attention.
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