Viburnum plicatum f. tomentosum 'Shasta'
Shasta Doublefile Viburnum

Viburnum plicatum f. tomentosum ′Shasta′ - Stem

Family:

Adoxaceae (Moschatel family) 51

Genus:

Viburnum (Viburnum, Dogmackie, Snowball, Arrowwood, Blackhaw) 49

Plant Type:

Shrub 462

Growth Forms:

Spreading / Branched 76

Hardiness:

USDA Zone 4 489

Deciduous / Evergreen:

Deciduous 794

Flower Notes:

White (White flowers form large (4-6" wide) flat-topped cymes; outer florets 1.25-2" across, inner 0.5-1.5" across; May)

Foliage Notes:

Green (Leafs out early in the spring; dark green summer foliage); Red (Reddish-purple coloration in the fall)

Fruit Notes:

Red (Red berries that turn black in late summer)

Ultimate Height:

6 feet

Ultimate Spread:

10-12 feet

Light Requirements:

Soil Notes:

Prefers moist, well-drained soils

Range:

Cultivated origin

Diagnostic Characteristics:

Leaves opposite, simple, up to 5" long, half as wide, ovate, coarsely serrate, pubescent underneath, with impressed veins. Buds are naked. Young stems are tomentose. Produces both sterile and fertile flowers (and therefore fruits are produced) in flat-topped cymes (Viburnum plicatum f. plicatum has snowball-shaped cymes of all sterile flowers).

Ecological Functions:

Special Characteristics:

Flowering Characteristics 353

Fruiting Characteristics 151

Additional Information

'Shasta' is a prolific bloomer and handsome plant that has strong, horizontal branching. The Doublefire Viburnum is fertile and more commonly used in the landscape than the sterile Japanese Snowball Viburnum (Viburnum plicatum f. plicatum). The white flowers are reminiscent of a lace doily with sterile showy flowers at edge surrounding the non-showy fertile flowers. Flower clusters accentuate the horizontal branching. Fruits are red that change to black if not eaten by birds, beginning in late summer.