Resources

Learn more about trees and how our world benefits from them.

USDA Plants Database
The PLANTS Database provides standardized information about the vascular plants, mosses, liverworts, hornworts, and lichens of the U.S. and its territories.

i-Tree

Conservation Trees and Shrubs Pocket ID Guide
This book was developed by the USDA Natural Resources Conservation Service as an aid in identifying trees and shrubs and to aid in their use for conservation purposes. Natural Resources Conservation Service foresters and plant materials specialists helped compile the information in this guide.

How to Measure a Big Tree
This PDF shows you the formula of how to measure a tree.

How to Prune Trees
The objective of pruning is to produce strong, healthy, attractive plants. By understanding how, when and why to prune, and by following a few simple principles, this objective can be achieved.

Forest Pests
Friend or foe? Find out what is lurking in your tree.

How to Recognize Hazardous Defects in Trees
This brochure was created to help home owners and land managers recognize hazardous defects in trees and to suggest possible corrective actions. Because of the natural variability of trees, the severity of their defects, and the different sites upon which they grow, evaluating trees for hazardous defects can be a complex process. This publication presents guidelines, not absolute rules for recognizing and correcting hazardous defects. When in doubt, consult an arborist.

Tree Transplanting Tips
These tips will help you choose the right tree.

National Scenic Byways
Get information about enjoying the fall colors by driving or biking along some of the nation’s most beautiful roads.

Natural Resource Benefits of Tree Planting
Why are trees so important? Read this brochure for some quick answers.

The U.S. National Arboretum Grove of Great American Trees
All 50 states have chosen icons -- a state tree, state flower, state bird, and other symbols. A state tree is often linked to the state by important historical events; struggles in America’s War of Independence, early uses by settlers, or importance in the timber industry. Find out why your state adopted its tree.

Learn About Christmas Trees and Greenery
Evergreens don’t shed shine with brilliant colors – unless someone turns them into a holiday tree. Learn more about Christmas trees and greenery.

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