Our bodies produce vitamin D after the skin is exposed to sunshine. But ideally your baby won't be sunbathing at all in the first six months, so he won't get enough vitamin D from the sun â even if you live in a relatively sunny place, such as Florida.
Or they should, anyway. While leaves will always change color as the amount of sunlight wanes, several weather conditions can affect how brilliant they become. High heat or drought can rob leaves of their brilliance, or make leaves drop early. Insufficient rain in September can also hurt peak color.
Other colors which have been in the leaf all along begin show through. The pigments which give us yellow, brown, and orange are called carotenoids. The reds and purples are called anthocyanins. The anthocyanins are not present in the leaf throughout the growing season as are the carotenoids.