Yes, you can set up a lasagna garden in the winter or spring and have it ready for planting. Truthfully it will break down better if started in the fall but you may not know you want a garden. I have even known a few people that create the layered garden that day and plant it immediately. When starting a lasagna garden late in the winter or spring you will use the same process as a fall garden. But I add a few “cheating methods” to help it...