White oak, northern red oak, bur oak, and coast live oak are among the many types of oak trees you might encounter. Telling them apart takes a combination of clues: leaf shape, acorns, bark, and...

A tree that brings shade, flowers, or privacy to your yard should also suit the water available to it. Drought-tolerant trees offer useful options, but choosing well means looking beyond a low-water...

Fine strands of sawdust sticking out of a tree trunk can be a sign of ambrosia beetle activity. Finding them is unsettling, especially when the tree looked healthy a few weeks earlier. The next step...