This grower is fairly sure of this plant identification.
3 or 4 in each pot 2 yr old sedlings from my old unlabbelled plant ,healthy and so fragrant and shade tolerant
Sarcococca confusa. This is a dense species with basal green branches, which will grow slowly to about 1.8m tall, They will bear smooth, shiny dark green leaves. The small white flowers are produced in clusters along the stems in early winter. Shiny black berries will follow.
They grow well in a cool, moist climate with well-drained soil.
Banks, hedging, specimen, fragrance. Winter interest.