Raspberry Foliage and Blue-Berry Fruit The Viburnum ‘Raspberry Tart’, Viburnum dentatum ‘Rastzam’, is named for its exceptionally showy raspberry-red fall foliage. This compact dwarf selection grows to only 4 to 5 feet. It is durable and hardy under harsh conditions, with superior winter hardiness. Rugged and adaptable, ‘Raspberry Tart’ is a striking, compact dwarf variety that produces showy flat-topped clusters of creamy white flowers in spring. This Viburnum is a relatively low maintenance shrub, and should only be pruned after flowering to avoid removing any of the current season’s flowers. The shiny, disease resistant foliage lasts all summer, and then it shows off its outstanding raspberry-red color in the fall. ‘Raspberry Tart’ also produces blue-black fruit which makes this a good choice for attracting birds to your yard! Highly tolerant of urban pollution, it will thrive in inner city environments, but this viburnum shouldn’t be allowed to dry out. * White Flower Heads in Spring* Blue-Black Berries Attract Birds* Raspberry Red Foliage in Autumn.