For local produce in Chattanooga, timing is critical. We experience temperature extremes. Some plants love the summer heat, others go bitter in it.
March is a great time to get cool season crops in the ground. Peas, lettuce, onions, potatoes and greens are in this category. They can survive a late light frost. If they don’t get in before April, the summer heat will likely stunt them or cause them to go to seed and get bitter.
But March is usually to early to put out frost sensitive plants like tomatoes. Unless tomatoes are protected or in a movable container, its best to wait till mid April to set them out.