Discover why towering redwoods and sequoias thrive on the West Coast but not the East, exploring unique climates, soils, and evolutionary history.

Look for disease-resistant varieties to minimize chemical control. Purple berries hanging from a European buckthorn tree - ...

This holiday season its probably not American chestnuts roasting on an open fire because the species is nearly extinct.

Frosted branch angiitis is a rare condition that makes the blood vessels that supply the retina look like the frosted ...

Learn how to give your jacaranda tree the best possible chance of thriving in your yard, and how you can properly combat ...

An SC orchard is helping restore the American chestnut tree, the dominate tree in eastern U.S. forests and Appalachia until ...

Matt MilkovichA 4-year-old cherry tree on Mahaleb rootstock infected with armillaria root rot. No known cherry ...

Washington State University Extension scientist Gary Chastagner has found solutions to Christmas tree diseases and other ...