As we roll into the cold months here in Upstate New York, most trees have done exactly what we expect them to do. The leaves ...

This is a maple tree that still has a few dead leaves on it during winter. - Marcia Straub/Getty Images The sound of the wind gently whispering through tree leaves during the winter might make you ...

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 ...

Have you ever noticed that when you cut down a tree — or a tree dies suddenly — the dead leaves stay on the tree for a long time? The leaves go from green to brown, but stay on the dead tree branches.

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 ...

Anyone wandering in the woods now is sure to notice that although there are green plants out here, most are far beneath the snow cover. There are some lichens of various colors - green, blue-green, ...

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 ...

Scientists have discovered a zombie tree that converts its leaves into roots as it dies. The Cyathea rojasiana tree fern, which is native to Panama in Central America, was studied by plant biologists ...

The basics of photosynthesis are something that every student learns in school: carbon dioxide, water and light in; oxygen ...

My sycamore trees look absolutely terrible, with very few leaves growing yet — they seem to have been dropping off over the last few weeks, making a mess in the garden. Is there something that I can ...

The sound of the wind gently whispering through tree leaves during the winter might make you think you've traveled back in time by a couple of months. Why are dried, dead leaves clinging to the ...