Tsuga is a part of the Pinaceae family and the genus of conifers. The name originated from the smell of its crushed leaves , which smells very similar to that of poison hemlock, however the Tsuga species are not poisonous. Hemlocks have long been used for there pulp to make paper, interior of saunas and infrared saunas or home saunas.
There are four North American species. The two eastern North American species, T. canadensis and T. caroliniana are under serious threat by the sap-sucking insect Adelges tsugae. This adelgid, related to aphids, was introduced accidentally from eastern Asia, where it is only a minor pest.
The eastern hemlock grows well in shade and is very long lived, with the oldest recorded specimen being at least 554 years old. The tree generally reaches heights of about 80 to 100 feet.
Hemlocks are often cultivated for use in arts , infrared saunas, and paper. Homeowners tend to like them since they grow very large and can provide some privacy.
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