Hemlock, western (Tsuga heterophylla)

Broadly conical in habit with a narrow crown, mature trees can grow to 45m (taller in their native habitat), and have characteristic long, drooping branch tips. The bark is dark brown with rugged ridges.

Look out for: the needles along the sides of the twig which are longer than those on the top. Its crushed needles smell like grapefruit. Each needle has two white stripes on the underside. Cones are unstalked.

Identified in winter by: its evergreen features which are present year-round.

What does western hemlock look like?

Not to be confused with:

Other planted hemlock-spruces. It is not related to the highly toxic herb hemlock, but shares its name due to the similar smell.

Where to find western hemlock

Native to north-west America, western hemlock was introduced to Britain in the 1852 by botanist John Jeffrey, and is now one of the most common conifers found in the UK. Best suited to moister climates, western hemlock has rapid growth and regenerates freely in a wide range of upland forests.

Value to wildlife

Western hemlock plantations are often very dark as they cast dense shade, which means very few plants or wildlife species can live beneath them.

Mythology and symbolism

In some ancient North-American traditions, western hemlock was an important herb for women. Among the Kwakwaka’wakw people, female warriors made head dresses from western hemlock for ceremonial dances.

Uses of western hemlock

It is mainly grown for timber and wood pulp in the UK, although it is also planted as an ornamental tree in parks and gardens. Western hemlock wood is commonly used for roofing and boxes as it holds nails well without splitting.