It turns out that, in terms of fall foliage, the color of too dry is officially known as “blah.” This would undoubtedly be the least popular color selection if it was included in a jumbo pack of Crayolas. Basically, it is a jumble of faded hues with a mottled brown patina throughout. This year’s dry summer could mean that “blah” may feature prominently in Mother Nature’s fall hardwood forest palette.
Why would a prolonged lack of moisture affect autumn color? Let’s look at what makes leaves colorful in the first place. Among the things we learned — and probably forgot right away — in Junior High Biology is that leaves are green because of chlorophyll, the amazing molecule that converts light, water and carbon dioxide into sugar and oxygen. Its intense green tends to mask colors such as orange and yellow that are present in leaves in lower concentrations. When chlorophyll dies off in the fall, those “weaker” colors are revealed. » Continue Reading.