Camellia sinensis var. sinensis
★★★★☆
Koshun
Early-budding and aromatic — a bright, fresh, naturally fragrant sencha.
Species
var. sinensis
Lineage
Modern hybrid
Country
Japan
Year
2000
Leaf size
Medium
Cup quality
4/5
Koshun (こうしゅん) is a Japanese green-tea cultivar registered in 2000, a cross of the Kurasawa line with Kanayamidori. It buds early, ahead of Yabukita.
Koshun is prized for a bright, fresh, naturally fragrant sencha with gentle sweetness — an aromatic early-season cultivar that gives growers a head start on the harvest and drinkers a perfumed spring cup.
Modern hybrid
Deliberate cross developed by tea research institutes. Developed 2000. Parent material: Kurasawa, Kanayamidori.
Lineage data & sources
Documented cross — its two parent cultivars are recorded in tea-breeding registries and confirmed by SSR/DNA analysis; trace them in the lineage explorer.
Sources: senbirdtea.com
Teas produced
Sencha
Flavor signature
Growing regions
- Japan (Shizuoka)
Origins where Koshun grows
Brands likely carrying Koshun
Direct-sourcing operations with focus areas that align with this cultivar's typical growing regions.