2 Mountain Hemlock Live Trees, Tsuga mertensiana Potted Evergreen Conifers, Blue Green Bonsai or Landscape Trees

Add graceful, year-round evergreen beauty to your landscape or bonsai collection with 2 Mountain Hemlock (Tsuga mertensiana) live trees. These slow-growing conifers feature attractive blue-green foliage and a naturally pyramidal shape. Their flexible trunks and branches also make them interesting candidates for bonsai.

Plant Details

• Plant: Mountain Hemlock

• Botanical Name: Tsuga mertensiana

• Quantity: 2 potted live trees

• Hardiness: USDA Zones 4–8

• Foliage: Blue-green evergreen

• Growth Habit: Slow-growing, pyramidal conifer

• Typical Garden Height: 15–30 feet

• Typical Garden Width: 8–15 feet

• Shipping: Ground shipping

• Expected Shipping Availability: Early December 2026

The garden dimensions describe typical mature growth, not the current shipping size.

Growing Conditions

Mountain Hemlock prefers cool climates and moist, well-drained growing conditions.

• Sunlight: Full sun to part shade.

• Soil: Moist, well-drained loam, sand, or rocky soil.

• Soil pH: 5.0–6.0.

• Watering: Maintain consistent moisture, especially while roots establish. Water deeply and allow the top layer of soil to dry between waterings.

• Climate: Prefers cool, moist summers and long, cold winters.

Mountain Hemlock is drought-tolerant once established but needs consistent moisture during establishment. It generally dislikes pollution, extreme heat, humidity, and heavy clay soils.

In warmer climates, plant in shade with only a few hours of morning sun. It may struggle in the hot, humid conditions common in the southeastern and eastern United States.

Landscape and Bonsai Uses

Mountain Hemlock offers year-round evergreen interest with a graceful pyramidal form. Its flexible trunk and branches help it withstand heavy snow loads and also make it an interesting bonsai candidate.

In gardens, it typically reaches 15–30 feet tall and 8–15 feet wide, although trees in native habitats can grow considerably larger.

Native Range

Mountain Hemlock is native to western North America. Its range extends from southeastern Alaska south along the Pacific Coast through British Columbia, Washington, Oregon, and Northern California. Inland populations occur in Idaho and Montana.

It can grow near sea level in the far north but is generally found at higher elevations farther south, including the Cascades, Sierra Nevada, Rocky Mountains, and Klamath Mountains.

Fertilizing and Pruning

Mountain Hemlock does not require heavy fertilization. A light application of balanced, slow-release fertilizer in early spring can be beneficial.

Pruning is generally minimal. If needed, prune in late winter or early spring. Avoid cutting into old wood because Mountain Hemlock does not back-bud.

Recommended Potting Soil

Mountain Hemlock needs very well-draining soil, particularly when grown in containers. We recommend our Dryland Conifer Potting Soil Mix for container growing.

Shipping and Weather Policy

• Expected shipping availability: Early December 2026.

• Shipping method: Ground shipping.

• If temperatures are warmer than 89°F or colder than 20°F, we will hold your order until temperatures improve.

• Every plant is inspected for quality before shipment.

• Plants are rarely damaged during shipping. If damage occurs, please contact us promptly and include photos of the package and plants so we can help resolve the issue.

Thank you for supporting our nursery and choosing Mountain Hemlock for your garden or bonsai collection!