Juniper Tree Basics: Identification, Planting, and Uses

Overview

Typically a shrub, juniper can reach small-tree size. The common juniper (Juniperus communis) has one of the widest natural ranges of any woody plant—across northern North America, Asia, and Europe. Easy to establish even in poor soils, it's a landscaping staple.

Needles

Evergreen, retained up to three years. Awl-shaped, blunt-tipped, concave with a whitish upper stripe. Colors: gray-green to blue-green. Grow in whorls of three, joined at bases. Winter color: yellow-brown.

Cones & Bark

Berry-like cones are bluish-black, waxy, under 1 inch wide, taking up to three years to ripen. Each contains three seeds—used to flavor gin. Bark is reddish-brown, peeling in strips, often hidden by foliage.

Transplanting

Dig hole wider than root ball, same depth as container. Spread roots, backfill with native soil, firm gently. Keep moist for first two years.

Considerations

Thrives in rocky soil, wind, snow. Plant in full sun. Avoid extremely hot climates—junipers prefer northern latitudes. Excellent for hedges and privacy screens.

Notable Cultivars

Low growers: 'Gold Beach', 'Repanda'. Small trees: 'Hibernica' (Irish Juniper)—bluish needles, columnar, dense, to 15 feet.