Viburnum vs Mock Orange

Viburnum is a genus of flowering shrubs and, in some classifications, small trees in the family Adoxaceae. The genus contains more than one hundred species native mainly to the Northern Hemisphere, although some occur in tropical regions. Viburnums are grown for their clusters of white or pink flowers, ornamental fruits, autumn leaf color, and varied growth habits. Their berries are eaten by birds...

Mock orange commonly refers to Philadelphus coronarius, a deciduous shrub native to southeastern Europe. In late spring or early summer, it produces white, four-petaled flowers with a strong fragrance that resembles orange blossom, although the plant is not related to citrus. Its arching stems and opposite leaves make it useful as a specimen shrub, informal hedge, or flowering screen in temperate...