Why Do Leaves Change Color in the Fall?

Posted by on June 28, 2011

Why do leaves change color in the Fall?
Chlorophyll is what makes leaves green and helps the plant photosynthesize so it can to feed itself.
Shorter days (coming on Fall) tell trees to produce less chlorophyll as it prepares to drop it’s leaves and rest over the Winter.
The leaves become less green and the Cartenoids (like the color in carrots and tomatoes) are revealed as yellow and red.
If the weather is colder than usual you may see deep red or purple leaves, caused by Anthocyanins (same as in blueberries).

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