Species blackhaw viburnum
off-white flowers with yellow anthers, green leaves and brown branches

blackhaw viburnum

Viburnum prunifolium

Blackhaw Viburnum (Viburnum prunifolium) is a native deciduous shrub with vibrant green foliage and showy white-pink flowers in late spring. A spreading and arching shrub, it can measure up to 12 feet in height and width and is typically grown for its ornamental appeal. The leaves are 3-5 inches in length, ovate to oblong in shape and dark green in color. In autumn, it produces small blue-black drupes that are edible and attractive to birds. This easy-to-care-for perennial is well-adapted to most landscape styles, providing structure and seasonal interest while providing food for wildlife.

Cycle:

Perennial

Watering:

Minimum

Propagation:

Seed Propagation,Cutting,Layering Propagation,Grafting Propagation,Division

Hardiness Zone:

3 - 9

Flowers:

White Flowers

Sun:

Full sun,part shade

Fruits:

blue,black Fruits Ready In Fall

Edible:

Yes

Leaf:

Yes

Leaf Color:

green

Growth Rate:

Low

Maintenance:

Low

Drought Tolerant:

Yes

Care Level:

Medium

watering

Blackhaw Viburnum should be watered deeply and infrequently. water once or twice a week in the summer months and every 2 or 3 weeks in winter. Aim to moisten the soil to a depth of 8-12 inches. Watering too frequently can lead to root rot and plant health issues. Avoid overhead watering and try to water slowly by using a soaker hose or drip system for the best results.

sunlight

Blackhaw viburnum (Viburnum prunifolium) requires 5-6 hours of direct sunlight per day for optimal growth and health. This can be achieved with full sun in the morning and/or late afternoon, or partial shade during the middle of the day. Sunlight intensity should remain consistent throughout the growing season; sudden or significant changes in light intensity can lead to plant stress and leaf discoloration. Additionally, take caution to avoid placing the plant in protection from cold winter winds that could cause damage.

pruning

Pruning blackhaw viburnums (Viburnum prunifolium) is beneficial to promote healthy growth and reduce the risk of disease. Prune in late winter or early spring before the plant begins to produce new growth. This will encourage the development of large flowers. Remove any dead, diseased, or damaged branches. Prune the plant back by up to 1-third its original size, making sure to leave some of the older wood. This will promote new growth and flowering from the base of the plant. Finally, thin out the branches to improve overall air circulation, decreasing the opportunity for disease.

Season

Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Harvest Fruit

The harvesting season for Viburnum prunifolium typically begins in late summer, usually in August or September.

Starts Flowering

Blackhaw viburnum typically starts flowering in April.

Harvest Fruit

The harvesting season for Viburnum prunifolium typically begins in late summer, usually in August or September.

Hardiness Map