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Viburnum cylindricum Tubeflower Viburnum

Photo Courtesy of Michael Dirr

Viburnum cylindricum

Tubeflower Viburnum

A rather large, bold evergeen species growing 8-10' with heights reaching 10-15' on old specimens.  Overall habit is slightly wider than tall.  Leaves can be quite long giving them a drooping appearance.  Leaf shapes can be extremely variable depending upon origin.  Margins are usually toothed on younger leaves and entire on mature plants.  On a common ground, the leaves are all dull, dark green and pale below.  The inflorescence is 7 rayed which then branches 3 or 4 more times before setting the individual flowers.  Flowers are white, scented and very cylindrical (tube shaped), hence its name.  Each flower is accentuated with purple to lilac anters which extend above the flower.  Fruits, which are rarely set, are egg shaped, ¼" or smaller and black.  Wide distribution from India, Southeast Asia, Malaysia, Himalayas, and China.  Zone 7  

USDA Hardiness Zone:



Reported size of this plant varies greatly depending upon what part of the world it is grown and site location and conditions.  The larger quoted sizes are usually under ideal growing conditions and are very old arboretum specimens which are allowed to grow without pruning.  V. cylindricum leaves have a waxy coating which turns gray when scratched or cracked.  You can even etch your name onto it for posterity.


8-12 Feet


10-15 Feet

Viburnum cylindricum Characteristics

Growth Rate in the Garden

  • Moderate


  • Rounded
  • Spreading

Soil Requirements

  • Moist, well drained
  • Acid

Sun Requirements

  • Full Sun to Part Shade

Flowering Season

  • Mid to late June

Fragrant Flowers

  • Yes


  • Black

Native to

  • Southeast Asia
  • China
  • Malaysia
  • India
  • Himalayas

Winter foliage

  • Evergreen