Western Hemlock

Tsuga heterophyllla

The Western Hemlock produces small, cylindrical cones that measure about 0.75 to 1 inch in length.

Arboretum Location: The William Constable Drawing Room

Division: Conifer

Family: Pinaceae

Origins: North America

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About

Western Hemlock

The Western hemlock, or Tsuga heterophylla, is a tall evergreen tree native to the western regions of North America, particularly the Pacific Northwest. This tree belongs to the pine family (Pinaceae) and is valued for its timber and ecological importance.

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The Appearance

A large evergreen conifer with a tall, straight trunk and a broad, conical crown. It has soft, feathery, dark green needles and produces small, pendulous cones.

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The Produce

The Western Hemlock produces small, cylindrical cones that measure about 0.75 to 1 inch in length. These cones are initially green and mature to a brown colour, releasing tiny seeds.

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The Flowers

Produces small, inconspicuous flowers in spring, followed by small, pendulous cones.

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The Leaves

The foliage consists of short needles, typically measuring around 0.5 to 1 inch in length, with a dark green colour on the upper surface and lighter green on the lower surface.

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The Bark

The bark is thick, reddish-brown, and deeply furrowed.

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The Habitat

Prefers moist, well-drained soils and full sun to partial shade. Commonly found in forests and along streams.

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The Ecology

Provides habitat and food for various wildlife, including birds and mammals. The dense foliage offers excellent cover.

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The Culture

Valued for its timber, which is used in construction and paper production. Often planted for reforestation.

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Fun Facts

The Western Hemlock is the state tree of Washington and is known for its graceful, drooping branches.

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