Growing radish indoors can be a fun and rewarding experience. Radishes are a great choice for indoor gardening, they grow quickly and don’t require much space. Here are some tips to get you started: Repost from Plantedinthegarden Find the right container: Radishes don’t need a lot of space to grow, so you can use a shallow container such as a 6” deep planter box. Make sure the container has drainage holes to allow excess water to escape. Use the right soil: Radishes prefer loose, well-draining s