What Tree Is That? is a tree identification guide from the Arbor Day Foundation, featuring an easy-to-use, step-by-step process to identify nearly any tree in North America.

Dive into robust resources and helpful tips for tree selection, planting, care, and more.

May 25, 2018 · The western tent caterpillar attacks a wide range of trees including poplar, willow, cottonwood, quaking aspen and especially fruit trees. A tell-tale sign is their white silken tents …

These comprehensive tree care tips will guide you through the process of selecting, planting, and caring for the right tree for your space.

We started with 42 communities in 16 states. Nearly half a century later, Tree City USA partners can be found in all 50 states, making an enormous impact across America. Explore the map to …

With its spiny dark green leaves and bright red berries, this evergreen tree is easily recognizable and will add color interest to your yard all year long. The American holly is native to the …

Tree diseases and pests vary tremendously from region to region, and what’s ailing a tree is often difficult to diagnose. Below you will find some basic information about what may be affecting …

Our tree guide offers extensive information on tree height and spread, soil and sunlight needs, leaf characteristics, historical background, wildlife habitat, and much more.

We are a global nonprofit inspiring people to plant, nurture, and celebrate trees. Along with our network, we’ve planted more than half a billion trees — with a focus on areas where they can …

Not sure which trees to plant? The Tree Wizard will recommend the best tree for you.