Convincing a plant to grow in your yard takes a green thumb. Convincing a plant to grow indoors takes something more—namely, a trip to specialty shop Alternative Hydroponics & Organics. The knowledgeable staff there will have you setting up an indoor hydroponic garden in no time—that means your plants will grow in water, without any soil. The garden center's jaw-dropping array of gear runs the gamut from fertilizers and supplements to heaters and irrigation systems, so you'll have your own crop of organic plants sprouting before you know it.