Gardening brings extensive benefits to physical and mental health. For example, planting, watering and weeding can increase physical activity and exercise muscles and joints of limbs. A large number of observations and studies have found that gardening has a good auxiliary treatment effect on neurosis, hypertension, heart disease and other diseases, especially when the above patients are relatively stable, proper gardening is more conducive to improving the functions of nervous system and cardiovascular system. In addition, it also has the function of stabilizing mood and eliminating chronic diseases such as insomnia. Calcium deficiency is more common in the elderly. Studies have confirmed that regular gardening can make people's bones strong and prevent osteoporosis. Many flowers have their special effects, which help to prevent diseases. Scientists have found that there is a special aromatic substance in the aromatic oil secreted by many plant flowers. These substances are inhaled into the lungs and input into various parts of the body, which have the functions of sterilization, anti-inflammation, diuresis and regulation of nerve center. Clinical pharmacists in China have detected many bactericidal substances from the essential oil of fragrant flowers. In addition, activities in the green environment can relieve fatigue, eliminate tension, lower skin temperature, slow down pulse, breathe evenly, and enhance the flexibility of olfactory, auditory and thinking activities.