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Viburnum sieboldii 'Ironclad'

Tall and upright in habit (15'x12') with large 5" long leaves with prominent veins.  Attractive red to black fruits appear in the fall as the foliage turns a dark burgundy.  The name is the result of it being the only survivor from a seedling planting.  A Roy Klehm, Beaver Creek introduction. 

USDA Hardiness Zone:



15 Feet


12 Feet

Viburnum sieboldii 'Ironclad' Characteristics

Growth Rate in the Garden

  • Moderate


  • Upright, rounded

Soil Requirements

  • Drought sensitive
  • Acid
  • Moist, well drained

Sun Requirements

  • Full Sun to Part Shade

Fall Color

  • Burgundy

Flowering Season

  • Mid to late May

Fragrant Flowers

  • No


  • Red to black

Winter foliage

  • Deciduous