Winterthur Smooth Viburnum

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A versatile and adaptable native shrub, Winterthur Smooth Viburnum brings dynamic interest to the landscape. In spring, flat-topped clusters of lightly fragrant white blossoms grace the plant, drawing pollinators. Flowers are followed by berries that mature from pink to inky blue, providing food for birds. Glossy green foliage turns burgundy red in fall, contrasting beautifully with the berries. (Viburnum nudum)
Zones 5 - 9
Attract Butterflies
Attract Birds
Good For Hedge / Screen
Winter Interest
Low Maintenance
Fragrant Flower / Foliage
Light Requirements
Full Sun
Half Sun / Half Shade
Mature Height 60-144" tall (5-12 feet) , 60-144" wide (5-12 feet)
Bloom TimeLate spring to early summer,berries in late summer to early fall

USDA Hardiness Planting Zones

To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low temperatures; the lower the zone number the colder the winter.

  • If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will survive the winter temperatures in your area.
  • If you live in very warm winter areas (zones 9-11) plants with zones 3-4 ratings are not recommended. The lack of freezing winter temperatures do not provide a time for winter dormancy (rest).

Find Your Planting Zone:

Plant Information
(5-12 feet tall x 5-12 feet wide) Winterthur Smooth Viburnum is a native deciduous shrub that offers multi-season interest. An introduction of Winterthur Gardens in Delaware, it won the prestigious Pennsylvania Horticultural Society Gold Medal in 1991. This versatile shrub adds structure to borders, foundation plantings, and hedges. Native to the eastern half of the US, Smooth Viburnum prefers full sun and moist soil, but can tolerate a wide range of soil conditions, including wet soil or areas near streams or ponds. Plant in groups for better berry production. The berries are edible but very acidic and may cause mild stomach upset. This deciduous shrub will lose its leaves in winter. Common names include Smooth Witherod and Possumhaw Viburnum.
More Information
Associated SKUsAM018676
AM018637 (Plant - 3" Pot) - Out of stock.
AM018658 (Tray of 16) - Out of stock.
AM019324 (Tray of 4) - Out of stock.
Common Name
Winterthur Smooth Viburnum
Botanical Name
Viburnum nudum Winterthur
5, 6, 7, 8, 9
Light Requirements
Full Sun, Half Sun / Half Shade
Flower Color
Flower Size
2-5" Flower clusters
Mature Height
60-144" tall (5-12 feet)
Mature Spread
60-144" wide (5-12 feet)
Growth Rate
Bloom Time
Late spring to early summer,berries in late summer to early fall
Planting Depth
Crown of plant should rest just at or above the soil surface after watering in.
Glossy green lance-shaped foliage turns red in fall.
Soil Type
Loamy Soil, Sandy Soil, Clay Soil, Well-Drained Soil
Soil Moisture
Moist / Wet
Wet Sites
Attract Butterflies, Attract Birds, Native, Good For Hedge / Screen, Winter Interest, Low Maintenance, Fragrant Flower / Foliage
Additional Information
Best cross-pollination and fruiting occurs when planted in groups. Berries attract songbirds. Flowers attract Spring Azure Butterfly and Hummingbird Clearwing Moths.
Winner of the Pennsylnania Horticultural Society Gold Medal (Steyer Award) 1991.
Ideal Region
Northeast, Southeast, Midwest, West, Southwest, Pacific Northwest
Planting Time
Neonicotinoid Free
Poisonous or Toxic to Animals
Fruit may cause mild stomach upset if ingested.
Ships to Hawaii, Alaska & Canada

No longer available this season.

As soon as your order is placed you will receive a confirmation email. You will receive a second email the day your order ships telling you how it has been sent. Some perennials are shipped as potted plants, some as perennial roots packed in peat.  The ‘Plant Information’ section describes how that item will ship. All perennials and spring-planted bulbs are packaged to withstand shipping and are fully-guaranteed. Please open upon receipt and follow the instructions included.

Perennials and spring-planted bulbs are shipped at the proper planting time for your hardiness zone. Perennial and spring-planted bulb orders will arrive separately from seeds. If your order requires more than one shipment and all items are shipping to the same address, there is no additional shipping charge. See our shipping information page for approximate ship dates and more detailed information. If you have any questions, please call Customer Service toll-free at (877) 309-7333 or contact us by email.

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