I think this will be be a lovely autumn. The leaves are still fairly green and the trees are relatively full. Can't wait. According to the
experts the bright reds and purples we see in leaves are made mostly in the fall. In some trees, like maples, glucose is trapped in the leaves after photosynthesis stops. Sunlight and the cool nights of autumn cause the leaves turn this glucose into a red color. The brown color of trees like oaks is made from wastes left in the leaves.