Sean O'Brien, from the UNH Cooperative Extension, takes a look at how beech leaf disease spreads and the signs to help you ...

Dear Master Gardener: We would like to plant a large shade tree with beautiful fall color to add to our landscape. Is a ...

If they become established in North America, the DNR said there will be "serious environmental and economic impacts." ...

Visit this area of the White Mountains in California's Sierra Nevada region, where you can hike and see trees that predate ...

Pine trees are one of the most common coniferous species in North America. Learn how to identify the types found in the United States and Canada.

Seattle summers are filled with sunny days and lush trees and shrubs throughout parks and neighborhoods, providing cooling ...

All tree leaves have an outer layer called the epidermis, which can also be used in the identification process. This leaf "skin" always has a waxy cover called the cuticle and varies in thickness ...

The staghorn sumac seed heads are beginning to change color and are now pale yellow, but as summer progresses the seed heads will become a crimson color. If you are not familiar with the staghorn ...