Hay bales provide an excellent venue for growing produce, even (especially!) for beginning gardeners. Horticulturist Joel Karsten began growing bumper crops in straw bales after college. Today, this bestselling author’s method has proven successful in nearly every global environment. He even teaches people in impoverished nations how to grow their own produce in straw. Karsten’s bale technique can help gardeners raise tantalizing tomatoes earlier than others who follow a more conventional…