Thanks for your responses. I have a small suburban lot and will be planting my vegetable gardens in 12 inch raised beds this spring. I am building raised beds for the first time. I love the idea of hugelculture for all the benefits it provides. But unless I excavate the existing soil, I thought that maybe laying down wood chips would offer similar benefits. Any further advice would be greatly appreciated. Living on Long Island, New York, my concerns would be prolonged drought and watering restrictions. The soil here is very fertile, and I plan on harvesting rain water in the event of a long drought. Thank you all! Ironfish