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Watch the FULL episode: https://www.youtube.com/watch?v=jLImX3QVakE Ask This Old House landscape contractor Roger Cook creates a water-efficient waffle garden. (See below for a shopping list, tools, and steps.) Click here to SUBSCRIBE to the official This Old House YouTube channel: http://www.youtube.com/subscription_center?add_user=thisoldhouse Shopping List for How to Grow Vegetables in the Desert: - Plant seeds - Coarse sand and compost, to amend the soil Tools List for How to Grow Vegetables in the Desert: - Square-blade shovel - Pickax, to loosen the soil Steps How to Grow Vegetables in the Desert" 1. Use a square-blade shovel to mark a series of square cells on the ground. Make each cell the width of two shovel blades. Space the individual cells about 12 inches apart. 2. Pile up clay-rich soil around each cell, creating a raised berm. Firmly compact the berms by pounding them flat with the shovel and then walking across them. 3. Use a pickax to break up and loosen the soil within each square cell. 4. Add coarse sand and compost to the loosened soil; mix well. 5. Plant a variety of vegetable seeds within each cell to a depth that's 1 1/2 times the diameter of each seed. 6. Cover the seeds with the amended soil, then lightly water the entire waffle garden, making sure to soak each cell. Follow This Old House and Ask This Old House: Facebook: https://www.facebook.com/ThisOldHouse Twitter: https://twitter.com/thisoldhouse https://twitter.com/asktoh Pinterest: http://www.pinterest.com/thisoldhouse/ G+: https://plus.google.com/+thisoldhouse/posts Instagram: http://instagram.com/thisoldhouse Tumblr: http://thisoldhouse.tumblr.com/