Photo: Walter Siegmund, CC BY-SA 3.0, via Wikimedia Commons
Trees and shrubs
Mountain hemlock
Tsuga mertensiana
Mountain hemlock is an evergreen tree that reaches about 125 feet at maturity, with a slow growth rate. Up to about 150 feet tall. Trunk to about 5 feet in diameter. In the wild it grows in moist, rich, wooded, subalpine slopes; 6000-11,000 ft.
Water
High
Light
Sun, Part shade, Shade
Hardiness
Zone 5
Mature height
125 ft
| Size | Each | At $10,000+ order | Quantity |
|---|---|---|---|
| 1 gal | $7.90Retail $9.99 | $7.11 | |
| 2 gal | $12.90 | $11.61 | |
| 5 gal | $28.00 | $25.20 | |
| 15 gal | $108.00 | $97.20 |
Orders of $10,000.00 or more get an extra 10% off, applied automatically.
$0.00 in cart$10,000.00
Growing guide
- Growth habit
- Evergreen Tree
- Mature size
- Up to about 150 feet tall. Trunk to about 5 feet in diameter.
- Growth rate
- Slow
- Water needs
- High; low drought tolerance once established
- Soil moisture
- Moist
- Light
- Sun, Part Shade, Shade
- Cold hardiness
- To -18°F (about USDA Zone 5)
- Bloom
- Yellow, Green, Brown · Jun, Jul
- Grows in
- Moist, rich, wooded, subalpine slopes; 6000-11,000 ft.
- Native range
- Mts. from s. AK to c. CA & n.w. MT
Wildlife and uses
Provides cover, nesting sites, and seeds for squirrels, birds, as well as foliage for mountain goats and other hoofed browsers.
Attracts: Birds
The extremely slow-growing mountain hemlock is good for a small garden. It is not tolerant of pollution, extreme heat or southern sunshine, but adapts to a variety of soils and habitats including harsh, dry, windy sites.
Good for: Restoration, Wildlife, Landscape
Sources
Hardiness zone is estimated from the USDA minimum temperature. Uses are suggested from USDA plant traits.
