Our Viburnum Collection is recognized as one of the top three national collections. Our taxonomic display currently is home to over 100 different kinds and 330 living specimens.
[Description references: “Viburnums — Shrubs for Every Season” by Michael Dirr.]
Here are a few samples of this diverse and ornamental shrub.

1)  Viburnum carlesii var. bitchiuense        Bitchu Viburnum

• Wonderfully fragrant flowers in early spring.
• Closely allied to V. carlesii.  Botanists still debate whether to “split” or “lump”.
• Located across from the Graham Visitor Center in full flower. Grid: 40-3E

2)  Viburnum macrocephalum       Chinese Snowball Viburnum

• 6’-10’ rounded shrub.
• Known for 3″ – 8″ wide, hemispherical cymes, hence the name “Snowball”.
• Located along maintenance facility mixed-shrub border fence. Grid: 43-5E

3)  Viburnum propinquum

• Large evergreen shrub with glossy three-veined leaves.
• Known to be tender in cold Pacific Northwest winters.
• Located in the Rhododendron Glen parking lot landscape. Grid: 12-8E

4)  Viburnum x rhytidophylloides ‘Alleghany’        Lantanaphyllum Viburnum

• National Arboretum introduction in 1958.
• Handsome dense evergreen shrub with abundant inflorescences.
• Located in Viburnum Collection. Grid: 25-5W

5)  Viburnum utile        Service Viburnum

• Rare in commerce, but important evergreen species for breeding.
• Dirr doesn’t think it has much ornamental value. I (David Zuckerman) disagree.
• Located in Viburnum Collection. Grid: 26-4W