Horticultural therapy is a valuable method for promoting mental health as well as physical well-being by involving individuals in the process of planting, nurturing, and appreciating plants. This practice is particularly effective in mental health education. By reviewing recent literature, this paper focuses on the role of horticultural therapy in reducing stress, regulating emotions, enhancing self-knowledge, promoting social interaction, and facilitating physical rehabilitation. The paper describes the therapy’s implementation and methods for evaluating its effectiveness. The findings indicate that horticultural therapy can significantly reduce stress, improve emotional states, increase self-awareness. These results are significant for mental health education.