Tsuga heterophylla

Western Hemlock

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A majestic evergreen conifer native to North America's Pacific Northwest. Features soft, flat needles and drooping branch tips. Thrives in cool, humid climates.
yard Outdoor plants wb_sunny Shade / Half-shade pets Not pet-safe
info

Plant Details

Common Name Western Hemlock
Family Pinaceae
Genus Tsuga
Species Heterophylla
Origin North America (Pacific Northwest)
Blooming Conifer, pollen cones in spring
Leaf Color blue-green to dark green
Sunlight Shade / Half-shade
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

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Soil

Moist, acidic, well-draining soil rich in organic matter.

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Watering

Keep soil consistently moist but not waterlogged. High humidity preferred.

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Sunlight & Care

Prefers partial shade or dappled light. Young trees need protection from harsh afternoon sun.

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Fertilization

Apply balanced slow-release fertilizer in early spring.

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Pruning

Minimal pruning required; remove dead branches or shape young trees.

Pest Control Aphid Hemlock Woolly Adelgid Scale Insect

These are the insects and pathogens that commonly interact with this plant, including pests, parasites, and organisms typically associated with its care.

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Seasonal Periods

local_florist Flowering Period 2 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
eco Leaf Persistence 12 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
thermostat

Growing Parameters

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Temperature
23° – 82°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
40% – 90%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
600 – 12000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
150 – 2000
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
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Soil Moisture
30% – 70%
% volumetric
Water content in the growing medium
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Soil EC
200 – 1500
mS/cm
Electrical conductivity (nutrient concentration in soil water)
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Common Problems

Something wrong with your Tsuga heterophylla? Select a symptom to diagnose and fix the issue.

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