Why dont you just plant a garden and have a lot of potted herbs around? Basil, Parsley, Thyme, etc... When your neighbors mention smelling weed, you can laugh that off and say it must be your herbal garden.... then offer them some herbal olive oil that you do yourself in one of those nice corked bottles. This is my plan, and I'm just starting my outdoor plans now. I'm actually growing a real vegetable garden to help disguise my other preference in plants. I already have a 16 foot section of fence that is loaded with Honeysuckle vine. They are VERY fragrant and flower here from spring to fall. I intend to plant along that fence, and have a couple of rows of tomatoes nearby as well. I may even alternate plants in rows so the MJ is dotted along the tomatoes. The way my yard is set up and the neighbors trees, a helo would have to come in hoovering to spot these.