It spread to Korea and Japan many years ago where additional cultivars were developed and then spread internationally during the 19th century.
Isabalele enarheni yange-Korea kanye neye-Japan eminyakeni eminengi eyadlulako lapha kwatlanywa khona eminye imihlobo yokuyingezelela bese yasabalala ephasini loke ngeminyaka yabo-19th century.