You may have already seen or eaten those mini oranges that taste super sweet and have the thinnest peel. But have you ever wondered what they are? These citrus fruits are called clementines and can easily be grown in your own garden. Clementine trees are ideal for beginner gardeners who want to grow citrus trees as houseplants. This is because clementines are hardier than their relatives and caring for them isn’t as difficult as you may think.