If you want to convert an old orchard to a self-sustaining food forest, start with the SOIL. Billions of creatures can live in a single teaspoon, all connected by miles of fungal mycelium. It's an entire universe beneath our feet. Prepare to be amazed.
Garlic Planting Conundrums, Part 2, in which we ask, where can you fit garlic in a permaculture landscape, what about companion planting with garlic, and what is the most efficient way to grow really great garlic?
Has winter exposed your garden as a bunch of boring rectangles and squares? Do you wish it more replicated real life, running in circles? There is help for people like us. Work WITH nature to transform your labor-intensive squares into a self-supporting food forest.
If you're looking for a really good book on permaculture, check out Toby Hemenway's "Gaia's Garden, A Guide to Home-scale Permaculture," second edition. This book was life-changing for me - and could be for the world, if we would only apply it.