A "secret garden" refers to a hidden or secluded area filled with plants, flowers, and trees, often providing a sense of tranquility and privacy. These gardens can be found in various settings, such as urban environments, private homes, or even public parks. They are typically designed to be a retreat from the outside world, allowing individuals to connect with nature. The concept of secret gardens has been popularized in literature, most notably in Frances Hodgson Burnett's novel, "The Secret Garden," where a neglected garden becomes a place of healing and friendship. Such spaces often encourage exploration and discovery, making them cherished spots for relaxation and reflection.