PSC 2620: Woody Trees and ShrubCourse HomeWeek 9

Buxus sempervirens - Common Boxwood

Plant Viewer
Detecting Flash
The leaf is elliptic or ovate in form and glossy green. Winter Gem is pictured above. The flowers are small and inconspicuous and light yellow. The stamens are the most visible part of the flower. Image: Wikipedia
The fruit of the Boxwood is inconspicuous and blends in with the foliage. Not the winter burn damage on the leaves which is a common occurrence on plants in our climate. Image: Wikipedia

Plant Description

This common broadleaf evergreens has been a favorite in Europe for centuries and is widely used throughout the world now. The actual species can grow 15-20 feet high and 8-10 wide, but most of the commonly used cultivars are much smaller. It is especially popular for use in hedges, topiaries and other formal roles because its slow growth makes it easy to keep trimmed. It has a dense branching habit and a rounded form with the branches extending all the way to the ground.

The leaf is elliptic in shape with an entire margin, 1/2 - 1 inch long, and arranged oppositely on the stem. The leaf is a bright glossy dark green on the top, and a more yellowish-green color below. Younger leaves are typically lighter in color and darken as they mature. The primary vein running down the middle of the leaf is clearly visible on the leaf. The leaf has a waxy feel if rubbed between the fingers. Small and inconspicuous light yellow flowers appear in the spring. They would probably pass unnoticed except that they appear to be fairly attractive to bees.

Landscape Use

Boxwood is very popular for use as an evergreen accent plant, and for use in mass plantings and hedges. The most common use by far is for shaping into formal hedges. It is also very popular for use as a topiary plant.

Points of Interest

Boxwood is very susceptible to winter burn, causing the outer leaves to turn an orangish-brown and become crispy. Leaves will not recover from this damage and should be pruned out. To avoid winter burn, plant in a location with part to full shade, especially during the winter months.

Notable Cultivars

Buxus microphylla Winter Gem A small-leafed variety with leaves that are lighter green than those of Buxus sempervirens. It grows 2 feet high and wide.



x Green Mountain It has a good rounded pyramidal shape, reaching 5 feet high and 3 feet wide.