The Pennsylvania legislature designated the eastern hemlock the official state tree on June 22, 1931.This tree thrives in cool, moist sites. It occupies steep north- or east-facing slopes in southern ...
For more than 20 years, conservationists have been fighting a tiny insect killing the region's hemlock trees. Efforts to protect the trees through insecticide and the deployment of natural predators ...
Pennsylvania's state tree is the eastern hemlock. Its scientific name is "Tsuga canadensis."The eastern hemlock was named the state tree in 1931.These trees are slow-growing and long-lived, taking 250 ...
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