Yes. Gardening is absolutely great for depression and anxiety. There are many activities of gardening you can do such as weeding, pruning, raking, watering and so on. Though those activities, it is caused to meet social and emotional needs as well as improve serotonin levels in the brain. So gardening helps to boost your mind and relax it. It is great to involve with gardening to reduce or eliminate symptoms of depression and anxiety. Gardening make you happy.