Mountain Hemlock (Tsuga mertensiana)
A graceful, pyramidal blue-green conifer thriving in USDA Zones 4-8, needing full sun to part shade and moist, well-drained loam, sand, or rocky soils with a pH of 5.0-6.0.
Mountain Hemlock is slow-growing, drought-tolerant once established, and generally low-maintenance. It offers year-round beauty with minimal fuss, though it dislikes pollution, extreme heat, and heavy clay. Needs consistent moisture, especially when roots are being established. Water deeply, allowing the top layer of soil to dry between waterings to prevent root rot.
Mountain hemlock native range extends from the southeastern tip of Alaska down the Pacific coast through British Columbia, Washington, Oregon, and Northern California. It has an inland population in the Rocky Mountains of Idaho and Montana. While it's found at sea level in the far north, it grows at higher altitudes in its southern range (Cascades, Sierras, Rockies and Klamath Mountains).
Mountain hemlock prefers cool, moist summers and long, cold winters. It generally does not perform well in the heat and humidity of the southeastern or Eastern United States. If planted in warmer areas, plant in shade with only a few hours of AM sun. Height varies by location, from 15-30 ft tall in gardens to much larger in native habitats. Grows 8-15 ft wide.
The mountain hemlock's flexible trunk and branches allow it to withstand heavy snow loads. This also make it a great choice for bonsai.
Mountain Hemlock does not require heavy fertilization. A light balanced slow-release fertilizer in early spring can be beneficial. Pruning also is generally minimal. If required, prune is in late winter or early spring. Do not prune old wood. Mountain Hemlock will not back-bud.
Needs a very well draining soil, especially in containers. We recommend our Dryland/High Elevation Conifer Potting Soil Mix.
If your temperature is warmer than 89 degrees or colder than 20 degrees, we will hold order until temperature improves. Please put your desired ship date in Special Instructions to Seller at checkout.
All plants are inspected for quality prior to shipment. Plants are rarely damaged in shipping, but if they are, please let us know right away so we can help. If there is any plant damage, take a photo of the package and plants. This will help us solve the problem.
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