Watanabei Doublefile Viburnum
Watanabei Doublefile Viburnum (Viburnum plicatum f. tomentosum 'Watanabei')
Watanabei Doublefile Viburnum (Viburnum plicatum f. tomentosum 'Watanabei'), also known as Watanabe Viburnum, is a compact, slow-growing selection prized for its long flowering season and elegant horizontal branching. This refined shrub delivers delicate white lacecap blooms for months, making it a standout choice for small gardens and ornamental borders.
Distinctive Features
This cultivar reaches 4 to 6 feet tall and wide, with a naturally layered, rounded shape. Flat-topped white lacecap flowers appear in late spring and continue blooming sporadically into early fall. The blooms stand out against dark green, textured foliage that turns reddish-purple in autumn. Its compact form and prolonged floral display make it an excellent structural element in mixed plantings.
Growing Conditions
- Sun Exposure: Full sun to partial shade
- Soil Type: Moist, well-drained soils
- Soil pH: Slightly acidic to neutral
- Water Needs: Moderate, with consistent moisture preferred
- USDA Hardiness Zones: 5 to 8
Ideal Uses
- Focal point in small-space gardens or courtyards
- Accent shrub for perennial borders or low hedges
- Woodland edges or dappled shade gardens
- Formal or Asian-inspired landscape designs
- Pollinator-friendly plantings with extended seasonal interest
Low Maintenance Care
- Prune minimally after flowering to maintain natural form
- Apply mulch annually to help retain soil moisture
- Water regularly during dry periods, especially in summer
- Fertilize in spring with a balanced, slow-release blend
- Generally free of serious pest or disease issues
Why Choose Watanabei Doublefile Viburnum
- Long bloom period from spring through late summer
- Compact, rounded form suits tight spaces and urban landscapes
- Horizontal branching adds graceful structure and balance
- Colorful fall foliage extends visual interest into autumn
- A refined focal point for low-maintenance, elegant gardens
Watanabei Doublefile Viburnum brings extended bloom time and graceful structure to the landscape, making it a reliable and elegant focal point for spaces that benefit from compact beauty and long-season interest.

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