10 Seeds Schizandra Seed (Wu Wei Zi) edible ,used medicinally,wine,vinegar,and soap . 10 Seeds Schizandra Seed (Wu Wei Zi) edible ,used medicinally,wine,vinegar,and soap . Another variant of schizandra berry is that of Schisandra sphenanthera which has a similar but different biochemical profile; the Chinese pharmaceopia distinguishes between Schisandra chinensis (bi w wi zi) and Schisandra sphenanthera (nan w wi zi).This species is a horticultural plant with edible fruit. It is used medicinally, as well as in wine and vinegar preparation and soap and lubricant manufacture. Growing Info: Scarification: Soak in water, let stand in water for 24 hours. Stratification: cold stratify for 90 days. Germination: sow seed 1/4" deep, tamp the soil, mulch the seed bed.