I know, it's not quite fall but it sure feels like it.....right?!? Although they need a spot in full sun, there are plenty of vegetables that don't need lots of heat. Spinach, lettuce and radishes, among others, grow best in the warm days and cool nights of early fall. And, unlike spring when the ground is cool, the soil in your garden is nice and warm-- perfect for a fast sprout. However, be ware that as the daytime temps fall, the growth on fall crops may slow down on you.