Why do some leaves turn yellow in autumn, while others turn red? • Leaves contain various coloured pigments. The pigments carotene (orange), xanthophyll (yellow) and chlorophyll (green) are found in ...

Yellow leaves can be an ambiguous symptom in plants. Like a fever in humans, yellowing leaves often indicate a health problem, but there are so many causes that the symptom doesn't indicate exactly ...

Autumn is a big time for trees. Many shed their leaves, and of course, before the leaves fall, they can turn brilliant colors. One of those colors has generated a lot of heated debate among scientists ...

I recently answered a question in my advice column on some azaleas with leaves turning color. A significant percentage of the leaves had turned orange, and the gardener was concerned that something ...

Over the next two or three weeks, fall leaf color should be at its prime in Georgia’s mountains. Leaf watchers by the thousands will be hitting mountain highways, trails and overlooks for a peep at ...

GRAND RAPIDS, Mich. (WOOD) — What makes some leaves change red in the autumn while others finish a golden yellow or orange? It is all to do with the chemical composition hiding inside each leaf. Let’s ...

Autumn officially began last Sunday, although the true harbinger of autumn — those ubiquitous pumpkin-flavored drinks and treats — began appearing at my morning coffee stop nearly a month ago! Autumn ...

Foliage in New York's most popular leaf-peeping spots is well past peak conditions but a few regions of the Empire State still display breathtaking fall colors. According to New York's weekly fall ...

Leaf watchers will still have an opportunity this weekend to see some of the bright fall colors throughout the state this weekend, although the window for viewing the changing colors is closing ...