Definition: A moathill is a type of flower that grows on rocks or other hard surfaces. It typically has small, round heads and petals that are white or light yellow in color. Moathills can grow up to 10 feet tall and produce large blooms that can last for several months. They are often found growing near bodies of water such as rivers or lakes, and their presence is often associated with the arrival of spring and the beginning of the blooming season.