Gardening is a hobby that can make you happier, healthier, and, perhaps, even a higher earner. As with many of the other hobbies on this list that make money, there are multiple ways to make your gardening hobby profitable. Gardening is an activity that's good for both the mind and body, and can be enjoyed by people of all ages. Plus, you get to eat the delicious fruits, vegetables and herbs that you grow. So, grab your tools and get in the dirt! It only takes a little bit of gardening to work up a sweat.