Abeliophyllum distichum 

A rarely found fragrant shrub for early spring.

A monotypic genus in the olive family found in Korea where it is endangered. Also called Miseonnamu or white forsythia. A scrambling deciduous shrub with slender branches bearing dark green leaves and racemes of forsythia-like, fragrant white flowers 1 cm wide in late winter or early spring. Best in the sun or part sun. 1.2m H. Large pots so transport is more costly, some other plants can be combined. In early winter these can be bare rooted. They don't look back.