From vibrant red maples to golden Norway maples, some Pa. trees are still displaying their seasonal transformations.

Japanese Maple Not Losing Leaves in Fall “I have a large red laceleaf Japanese maple tree. I noticed that the leaves that ...

To stay healthy, sometimes trees need a little help in the form of a trim. Pruning is an essential maintenance activity to promote tree health, safety, and aesthetics. Since trees are large, ...

The red pigments in some fall leaves have proven to be a puzzle for researchers who debate why leaves bother to go red.

As the fall winds blow the remaining leaves from deciduous trees and the plants have gone dormant for the season, the bones ...

On a February day, it may seem as if all the trees and shrubs — except for the evergreens or conifers — are leafless. But a walk in the neighborhood, or a local natural area, will reveal that’s not ...

While out for a walk this weekend, some leaves were really in my face, which got me thinking about why. This is a very leafy time of year, with lots of leaves underfoot, so many that walking in the ...

Howard Garrett Are your live oaks dropping leaves? Are they in trouble? Dropping leaves, yes. In trouble, probably not. Evergreen trees generally drop their leaves yearly, but usually in the spring ...

Mark Diacono doesn't grow many trees for the sake of the bounty they provide — but these are the notable exceptions.