50-60 Days to maturity. Chryptotaenia japonica. Japanese Parsley - Mitsuba Seeds. Perennial, heirloom. Mitsuba grows wild in Japan and has become a traditional vegetable (dento yasai). The long stalks of this woodland plant have delightfully aromatic trefoil leaves. Although perennial by nature, this plant is grown as an annual food crop. It is also excellent grown as microgreens, and the blanched white stems are highly prized. This Mitsuba is a Kansai type and very hardy. ~ 12,500 seeds / oz.