Most of the broad-leaved trees in the North shed their leaves in the fall. However, the dead brown leaves of the oaks and a few other species may stay on the tree until growth starts again in the ...

Chlorophyll is what makes leaves green. Leaves also contain carotenoids, which produce yellow, orange and brown colors. In ...

Q: We started to notice these spots in the St. Augustine in late summer and they are still here. They began as yellowed grass ...