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Welcome to PATrees.org
The Place to Learn about Pennsylvania’s Trees
How to Care for Them
And Tap into Tree Expertise across the Commonwealth
Trees are marvelous living organisms that transform water, carbon dioxide, and a few minerals into structures that are both beautiful and useful. Trees are the tallest, most massive, longest-lived living things ever to grow on earth, yet some species are shrub-like while others tower hundreds of feet towards the sky. Trees vary in almost every way imaginable - size, color, shape, form, structure, needs, sensitivity, and resistance.
Trees are an important part of Pennsylvania’s landscape and history, providing a wealth of benefits to the residents and visitors of the Commonwealth. It’s right in our name - Pennsylvania means “Penn’s Woods” named for its founder William Penn. Nearly 60% (or 17 million acres) of Pennsylvania’s 28 million acres are forested.
Whether it be a large tract of forested land, a small wooded homesite, a backyard shade tree, or a row of street trees, they all serve a purpose and provide benefits such as shade, color, beauty, wildlife habitat, clean water and air, and increased property values.
What is PATrees.org?
This site was created by tree experts in Pennsylvania to help answer many of your questions about how trees grow, how they should be cared for, and dispel many old myths about tree care. From helping you identify your trees or insects feeding on it, to learning how to properly prune or plant a tree, you can find answers to your questions as well as link to other great resources, including all the organizations that have partnered together to bring you this website:
Penn State University - Cooperative Extension
Pennsylvania DCNR - Bureau of Forestry
Pennsylvania Community Forestry Council
PennDel Chapter of International Society of Arboriculture
USDA Forest Service
NEPA Urban & Community Forestry Program
Got Tree Questions?
What kind of tree is growing on my property?
What type of trees should I plant on my property?
When should I prune my tree?
I think something is killing my tree, what is it and what can I do to save my tree?
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