American Boxwood

(Buxus sempervirens)

Contact: Diane Relf, Extension Specialist, Environmental Horticulture

August 1996

Summary:

Foliage: Evergreen broadleaf
Height: 15 to 20 feet
Spread: 15 to 20 feet
Shape: Bushy

Small leaves are glossy dark green, sometimes turning brown in winter.

Plant Needs:

Zone: 5 to 9
Light: Partial shade to full sun
Moisture: Wet, moist, to dry
Soil Type: Sandy or loam
pH Range: 3.5 to 6.5

Functions:

Suggested uses for this plant include border, hedge, foundation, and specimen plant.

Planting Notes:

Plant in well-drained soil.
Use balled and burlapped or container grown plants.
Plant at same depth as grown in nursery.
Protect from harsh summer sun and winter wind.

Care:

Tolerates pruning and shearing; prune dead branches anytime. Easily pruned to any desired shape.
Water thoroughly, drenching the entire area around a plant, once a week in hot, dry weather.
Test soil in fall for fertilizer recommendation.

Problems:

Susceptible to many insects and diseases including boxwood leaf minor, boxwood psyllid, boxwood mite, foliage and twig blights, and Phytophthora root rot.

Alternatives:

Consult local sources, including historic or public gardens and arboreta, regarding cultivars and related species that grow well in your area.
Cultivars of BUXUS SEMPERVIRENS:

`Suffruticosa' (English Boxwood) has dense lighter green leaves and a nice billowy effect. It is a very slow grower.

Related species:

BUXUS MICROPHYLLA (Korean or Littleleaf Boxwood) is the hardiest and easiest to grow.

Comments:

A popular, broadleaf evergreen in Virginia.
Leaves tend to loose their color in the winter. Winter discoloring is less in shady locations.
Boxwoods make excellent specimen plants or hedges and are also suitable for bonsai.

Additional Materials:

The PRUNING SERIES videotape can be ordered through your local Extension office.
The following Extension publications can be ordered from your local Extension office or directly from: Extension Distribution Center 112 Landsdowne Street Blacksburg, VA 24061
#426-603 "Boxwood in the Landscape"
#426-500 "Winter Injury to Trees and Shrubs"
#426-607 "Selecting Landscape Plants - Broad-leaved Evergreens"

This material was developed by Carol Ness as part of the Interactive Design and Development Project funded by the Kellogg Foundation. Mary Miller, Project Director. Diane Relf, Content Specialist, Horticulture. Copyright 1989 by VCE.

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