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Eastern hemlock (Tsuga canadensis), also called Canada hemlock, is a large conifer native to the forests of eastern North America. It can reach up to 20 m in height and is recognized for its graceful, conical shape with gently drooping branch tips. Its foliage consists of flat, slender needles that are dark green on top and whitish underneath, arranged in two rows along the twigs. The bark is brownish-grey and becomes scaly with age. This species naturally grows in cool, shaded forests, often on deep, acidic, and well-drained soils. It thrives in cool, moist environments.
Medicinal and culinary uses
Eastern hemlock has astringent and tonic properties. The young needles can be used to make vitamin C–rich infusions that help relieve mild respiratory ailments.
Ecological roles
Eastern hemlock plays a key ecological role in mixed and coniferous forests. Its dense canopy maintains soil moisture and creates a cool microclimate that supports forest biodiversity. It provides shelter and nesting sites for many bird species, such as the American robin and the black-throated green warbler. Its cones serve as food for several species, including squirrels, chipmunks, and certain chickadees. In forested environments, it contributes to soil stability and helps prevent erosion on slopes.
Eastern hemlock seeds require cold stratification to ensure germination. See the cultivation notes below for more details.
Akène cannot assume any responsibility for the use of plants for therapeutic purposes. Always seek advice from a professional before using a medicinal or edible plant.
Sowing and Growing
Technical Details
Seeds per packet: 50
Family: Pinaceae
Scientific name: Tsuga canadensis
Life cycle: Perennial
Hardiness zone: 4a
Soil type: Sandy to loamy
Soil moisture level: Medium
Soil - additional attributes: Well-drained, prefers humusy soils, tolerates compaction
Light: Part shade
Blooming: Spring
Spacing: 1200 cm
Height: 2000 cm
Deer resistance: Moderate
Stratification: 60 to 90 days
Scarification: Soaking for 24 hours
Germination time: Unknown
Sowing depth: 3 mm