| Scientific Name: | Tsuga mertensiana |
| Common Name: | mountain hemlock |
| Family Name: | Pinaceae |
| Origin: | B.C. west of Cascades, U.S. - northwest |
| Hardiness Zone: | Zone 4: (-34 to -29 °C) |
| Plant Type: | Conifer |
| Mature Size: | 10 - 15m x 5 - 7m (height x width) |
| Habit: | Pendulous, Upright |
| Form: | Pyramidal - narrowly |
| Texture: | Medium - fine |
| Landscape Uses: | Container planting, Forestry, Reclamation, Screening, Shade tree, Specimen plant, Wetland - bogs, Wildlife food, Wind break |
| Exposure: | Full sun, Part sun/part shade |
| Soil or Media: | Acidic, Humus rich |
| Leaves: | Needle-like, Spiraled, Soft flexible, Glabrous, Falcate, Linear |
| Flowers: | n/a (male cone), Yellow, Brown, Feb-Mar |
| Fruit: | Cone (winged seeds), Purple, Red, Brown, Sep-Oct |
| Key ID Features: | |
| Twigs yellow-brown, densely pubescent; needles mostly spirally arranged, curved towards apex, linear, most 10-25mm long x 1-1.5mm wide, margins smooth, inconspicuous stomatal bands on upper and lower surface, lower surface somewhat rounded in cross-section; seed cones spruce-like, sessile, ovoid, 3-6cm long x 1.5-2.5cm wide, dark purple becoming to red-brown when mature; scales pubescent. <a href ='https://www.conifers.org/pi/Tsuga_mertensiana.php' target='_blank'>Conifers.org</a> | |