Why do leaves change color in the fall? Here's the science behind the fall phenomenon Laura Daniella Sepulveda, Arizona Republic Thu, October 10, 2024 at 4:28 PM UTC 2 min read ...

While leaves can change color anywhere from mid-September to early November, the Old Farmer's Almanac says that the second ...

The color of leaves is regulated based on the length of nights as the months go by. The duration of autumn nights is the primary reason for the pigment change, and less from other factors like ...

Fall is around the corner, which means it's almost time for the beautiful colors of Delaware's fall foliage. Fall starts with ...

This triggers the leaves to stop producing chlorophyll, the green pigment, and other pigments like carotenoids (which create yellow colors) and anthocyanins (which create red colors) start to show up.

The color of leaves is regulated based on the length of nights as the months go by. The duration of autumn nights is the primary reason for the pigment change, and less from other factors like ...

Leaves are beginning to turn on the trees along the Thames River in London, Ont. This photo was taken from Oxford Street, east of Commissioners Road, on Sept. 15, 2024.

Finally, leaves begin to turn brown once all their nutrients are reabsorbed by the tree. The brown color is the result of leftover tannins, a chemical found in many leaves, especially oaks.

Fall foliage is such a special time of the year because peak colors only last about a week. Here's the science of why leaves change color and fall.

5 places in Arizona to see fall leaves Here's where to see the fall leaves in Arizona: Flagstaff: There's no denying that Flagstaff is a popular spot for leaf peepers.