Prasium majus, commonly known as White Hedge-nettle, is a perennial herbaceous plant native to the Mediterranean region. It belongs to the Lamiaceae family, which also includes mints and sages. This species is recognized for its attractive foliage and delicate white flowers, making it a plant of interest in its native landscapes and for horticultural purposes. The growth habit of Prasium majus is typically upright to spreading, forming clumps that can reach a height of approximately 30 to 60 centimeters. Its stems are square in cross-section, a characteristic feature of the Lamiaceae family. The leaves are ovate to lanceolate, with serrated margins, and are arranged oppositely along the stem. They are typically a vibrant green color and possess a slightly rough texture. The plant produces whorls of flowers in the leaf axils, usually during the spring and summer months. The individual flowers are small, tubular, and distinctly two-lipped, with the upper lip often hooded and the lower lip divided into lobes. The corolla is predominantly white, sometimes with subtle markings or a pale pinkish hue. Following successful pollination, the plant develops small, nutlet-like fruits. Prasium majus is indigenous to the Mediterranean basin, with its natural distribution extending across southern Europe, North Africa, and parts of the Middle East. It thrives in a variety of habitats, commonly found in open woodlands, scrublands, rocky slopes, and along the edges of cultivated fields. It prefers well-drained soils and can tolerate a range of soil types, from sandy to loamy. While it is adapted to the warm, dry summers and mild, wet winters characteristic of its native climate, it can also be cultivated in gardens. For successful cultivation, it generally requires a sunny to partially shaded location and moderate watering, particularly during establishment and dry periods. It exhibits good drought tolerance once established. Historically, Prasium majus has been noted for its traditional uses, particularly in folk medicine within its native range. Various parts of the plant have been employed in herbal remedies for a range of ailments. However, it is important to note that scientific validation for many of these traditional applications is limited, and modern medicinal use is not widespread. Ornamentally, its neat growth habit and floral display make it a suitable candidate for rock gardens, borders, or naturalistic plantings where its Mediterranean aesthetic can be appreciated. Its ecological role involves providing nectar for pollinators, contributing to the biodiversity of its native ecosystems. An interesting characteristic of Prasium majus is its ability to adapt to varying light conditions, though it generally flowers best in full sun. The square stems are a key diagnostic feature for identifying members of the Lamiaceae family, aiding in its classification and understanding its botanical relationships. The plant's resilience and relatively low maintenance requirements contribute to its appeal for gardeners seeking to incorporate Mediterranean flora into their landscapes.