Straw Bale Gardening, great in all climates from the Arctic to the Caribbean islands!
Straw Bale & Glass Cold Frame - To keep growing in winter weather, consider this low cost clever idea. Insulate your garden with straw or hay bales & cover with glass (in this case old sliding doors) to retain heat. Some ventilation during warmer days would be necessary. Also a pest + animal deterrent. Caution around kids though! | The Micro Gardener