The U.S. Forest Service states that the largest reason for leaves changing colors is sugars stored by trees. There are three ...

The green color in leaves comes from a pigment called chlorophyll ... This allows other pigments in the leaf, such as carotenoids (which produce yellow and orange hues) and anthocyanins (which ...

Soon after, the process of leaves falling off trees happens ... allowing less concentrated chemicals such as anthocyanin and carotenoids to dominate, turning the leaf red, yellow or orange." ...

Why do leaves change color? According to the U.S. Department of Agriculture, there are three factors that help leaves change their colors: leaf pigments, length of night and weather. Length of ...

According to the Farmer's Almanac, leaves in Texas typically start changing colors in ... allowing other pigments to become visible. Carotenoids: Produce yellow and orange colors.