Fall is the fastest moving season. Early September often looks a lot like summer, but the whole scene begins to blush and blaze just a few weeks later. One day your spirea is a washed-out green, the next day it turns toward coppery red. It’s on fire for a week—and then the foliage strips itself overnight, leaving the skeleton of a naked shrub. If you fail to keep your eyes open, you’ll miss a riveting pageant.When the last leaf has floated to the ground, autumn berries still cling to the branches—much to the delight of migrating birds who desperately need fuel for their journey. The perks continue long after frost. Read more.