What is formal definition of dish garden?

A dish garden is a miniature garden contained within a shallow, decorative dish or container, typically featuring a variety of small plants, such as succulents, ferns, and flowering species. It is designed to create an aesthetically pleasing arrangement that can be placed indoors or outdoors. Dish gardens are often used for decorative purposes and can serve as a unique centerpiece or gift. They require specific care based on the types of plants included, particularly regarding light and watering needs.