Fall weather means saying goodbye to the summer fruits and vegetables at the local farmers market but welcomes a new set of contenders to pull from the ground and put on the plate. While pumpkin spice may be king of fall, leafy greens such as cabbage, collards, kale, lettuce and spinach are packed full of nutrients and offer a variety of cooking options. And retiree and Hall County Master Gardener Danny Askew knows about cultivating vegetables for a healthy diet Askew led the “Gardening for Healthy Eating” class Wednesday at Gardens on Green, 711 Green St., in Gainesville.