Western Hemlock (Tsuga heterophylla) can grow very large over time. A mature tree can surpass 100’ in height, and 30’ in width. The trunk can swell to a 4’ diameter. The foliage of Western Hemlock consists of soft flattened needles which are bright green when new, turning lustrous dark green as they mature. When examined from below, there are white bands on the underside of the needles. The Western hemlock prefers acidic, cool, moist to wet soils with good drainage. While the best growth may be obtained in full sun, like other hemlocks, Western Hemlocks are quite tolerant of partial to full shade.
Classification: Perennial Key Characteristics: Cones Light Requirements: Full sun to full shade Water Requirements: Dry to moist soil Ease of Growing: High Growth Rate: Slow Bloom Time: May – June Spreads: No Benefits: Wildlife, Beneficial insects, On Portland Plant List, Hummingbirds Edible: No Mature Height: 120-200 feet Mature Width: 30-40 feet
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