If you’re growing herbs or anything else you plan to eat or use on your body, Ms. Gatanas suggests buying organic soil that hasn’t had chemicals added to it. Edibles like basil, mint and strawberries will also grow just fine in a soil mix used for other plants. But remember that herbs require a lot of light. When you buy a plant, it will probably come in a plastic grower’s pot with drainage holes at the bottom. You’ll want a planter or pot that’s the same size or an inch or two larger than the plant.