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Viburnum nudum 'Winterthur'
Smooth Witherod
Plant Type:
DECIDUOUS SHRUBSViburnum nudum ‘Winterthur’ – The Smooth Witherod is closely related to V. cassinoides. This improved selection from Winterthur Gardens in Delaware has glossy tongues of foliage turning red-purple in autumn. Rounded white cymes occur in mid-spring. The fruit set is spectacular when associated with another V. nudum cultivar. A single berry will go through the following changes: medium glossy green – light pearly whitish-green – pink – lavender – blue and finally purple-black. Often the many different color incarnations occur simultaneously for a spectacular late season show. This is a smaller growing viburnum that would work well as a component in a smaller garden. The species comes from Connecticut, Long Island to Florida, west to Kentucky and Louisiana.
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Characteristics and Attributes for Viburnum nudum 'Winterthur'
Season of Interest (Flowering)
- Spring
Season of Interest (Foliage)
- Spring / Summer / Autumn
Autumn Interest
- Fruit / Berries / Seed Heads
- Autumn Leaf Color
Nature Attraction
- Songbirds
- Honey Bees & Native Bees
Light
- Morning Sun / Afternoon Shade
- Full Sun
Attributes
- Hedge
- Hedgerow
- Specimen
- Wildlife Garden
- Foundation
- Shrub Border
Growth Rate in the Garden
- Medium
Soil
- Fertile
Origins
- Garden Origin
Propagated By
- Cutting Grown
Genus Overview: Viburnum
Common Name: Viburnum
Viburnum. This genus is full of fantastic, multi-season garden worthy shrubs. Garden heroes. Spring flowers, often large and showy, many with heady sweet fragrance are arranged in cymes. Some smell of musk (Viburnum dilatatum) while others produce no fragrance at all. Flowers are followed with berries. If late season and autumn berries are desired then planting two of a species will ensure fruit set; for instance, Viburnum dilatatum 'Erie' and V. dilatatum 'Michael Dodge' will pollinate each other and produce fruit. Viburnum cassinoides is closely allied with V. nudum; but if the flowering times do not overlap then there will be no fruit. However, if you plant V. nudum 'Winterthur' in proximity with V. nudum var. angustifolium, 'Longwood', 'Moonshine' or 'Pink Beauty' berries will abound. Another interesting example is V. lantana which crosses with V. burejaeticum and vice versa. Any V. plicatum f. tomentosum selection such as 'Shasta' or 'Shoshoni' will pollinate with all other V. plicatum f. tomentosum selections like 'Copper Ridges or 'Pink Beauty'. But if you were to plant two 'Shasta' side by side with no other V. plicatum f. tomentosum in near proximity then your effort will be fruitless. As with almost all in the universe of plants there are exceptions. There is one viburnum which appears to be self-fruitful, Viburnum setigerum the Tea Viburnum. Another interesting exception to the rule is Viburnum nudum 'Pink Beauty' which is also self-fruitful - a departure from its siblings. And on the other spectrum are two I can think of off-hand that are barren, Viburnum plicatum 'Roseum' and Viburnum plicatum 'Kern's Pink'. Oftentimes, the dwarf viburnums reamin in a juvenile state and do not produce fruit. All Viburnum of any size that do produce fruit are magnificent in the late season garden. And they feed all manner of birds. Larger, denser shrubs provide cover and nesting opportunities. Nearly all Viburnum have terrific autumn foliage colors, too. Viburnums are members of Caprifoliaceae. All prefer part to full sun and fertile soils. All are cutting grown. Many thanks to Gary Ladman of Classic Viburnums who generously set us straight regarding some of the details we had originally incorrectly lauded... ya can't know everything!