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Viburnum dilatatum

Viburnum dilatatum 'Iroquois'

A US National Arboretum introduction resulting from the cross of two V. dilatatum selections made in 1953 and introduced in 1966.  Selected for its large, thick textured, dark green leaves; abundant inflorescence of creamy-white flowers; larger, glossy, dark scarlet fruits; and globose habit.  Original plant is 9' tall and 12½' wide.  In May, the inflorescence transforms the plant into a mound of creamy white.  The glossy dark red fruits are larger than the species.  Flat, wide spreading fruit clusters in August contrast well with the dark green foliage and persists long after the leaves have fallen.  Fruit is so heavy that it weighs down the branches.  Zone 5

USDA Hardiness Zone:



9 Feet


12 Feet

Viburnum dilatatum 'Iroquois' Characteristics

Growth Rate in the Garden

  • Moderate


  • Broad, rounded

Soil Requirements

  • Moist, well drained
  • Acid

Sun Requirements

  • Full Sun to Part Shade

Fall Color

  • Orange-red to maroon

Flowering Season

  • Mid to late May

Fragrant Flowers

  • No


  • Abundant and showy
  • Dark red
  • Persistant