Do you love to grow tomatoes? Since tomatoes are known to grow best during warmer seasons, you might wonder if you can also grow tomatoes inside your home. Ahead, experts share everything you need to know about growing tomatoes indoors. To help strengthen your tomato plant, you'll want to add a three-foot stake to the container you're planting it in. And similar to tomatoes grown outdoors, tomatoes grown indoors should be harvested when they are completely ripe—this will result in the best flavor.