Clean gardening with hydroponic systems are the way to go! You can have your own food grown in pure water free from synthetic pesticides, antibiotics and all sorts of harmful things you don't want in your food.
25 Herbs, Vegetables & Plants You Can Grow In Water
Hydroponics is a great way for those with limited yard space to grow their own food. It’s easy to set up, and you will have little maintenance, no weeds, and little watering. I built my system, that holds 25 plants.