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Knighthood Blackhaw Viburnum

Viburnum prunifolium 'Knizam'

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Knighthood Blackhaw Viburnum (Viburnum prunifolium 'Knizam') at Lakeshore Garden Centres

Knighthood Blackhaw Viburnum flowers

Knighthood Blackhaw Viburnum flowers

(Photo courtesy of NetPS Plant Finder)

Knighthood Blackhaw Viburnum (Viburnum prunifolium 'Knizam') at Lakeshore Garden Centres

Knighthood Blackhaw Viburnum in bloom

Knighthood Blackhaw Viburnum in bloom

(Photo courtesy of NetPS Plant Finder)

Knighthood Blackhaw Viburnum (Viburnum prunifolium 'Knizam') at Lakeshore Garden Centres

Knighthood Blackhaw Viburnum in fall

Knighthood Blackhaw Viburnum in fall

(Photo courtesy of Lake County Nursery)

Height:  15 feet

Spread:  8 feet

Sunlight:  full sun  partial shade 

Hardiness Zone:  3b

Other Names:  Black Haw Viburnum

Description:

A graceful, vase shaped variety with showy clusters of creamy white flowers in spring, pinkish-red berries which fade to dark blue in fall and good fall color; a rigid large shrub or tree that is very attractive as a solitary specimen; disease resistant

Ornamental Features

Knighthood Blackhaw Viburnum features showy creamy white flat-top flowers at the ends of the branches in mid spring. The royal blue fruits are held in abundance in spectacular clusters from early fall to late winter. It has dark green deciduous foliage. The glossy pointy leaves turn an outstanding plum purple in the fall.

Landscape Attributes

Knighthood Blackhaw Viburnum is a multi-stemmed deciduous shrub with a more or less rounded form. Its relatively coarse texture can be used to stand it apart from other landscape plants with finer foliage.

This is a relatively low maintenance shrub, and should only be pruned after flowering to avoid removing any of the current season's flowers. It is a good choice for attracting birds to your yard, but is not particularly attractive to deer who tend to leave it alone in favor of tastier treats. It has no significant negative characteristics.

Knighthood Blackhaw Viburnum is recommended for the following landscape applications;

  • Accent
  • Mass Planting
  • Hedges/Screening
  • General Garden Use

Planting & Growing

Knighthood Blackhaw Viburnum will grow to be about 15 feet tall at maturity, with a spread of 8 feet. It tends to be a little leggy, with a typical clearance of 2 feet from the ground, and is suitable for planting under power lines. It grows at a medium rate, and under ideal conditions can be expected to live for 40 years or more.

This shrub does best in full sun to partial shade. It is very adaptable to both dry and moist locations, and should do just fine under average home landscape conditions. It is not particular as to soil type or pH. It is highly tolerant of urban pollution and will even thrive in inner city environments. This is a selection of a native North American species.

This plant is not reliably hardy in our region, and certain restrictions may apply; contact the store for more information.

 
 
Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Accent  Massing  Screening  Garden 
Applications
Flowers  Fruit  Fall Color  Plant Form  Attracts Wildlife 
Ornamental Features