Syringa, commonly known as lilac, is a genus of flowering plants in the olive family, Oleaceae. It includes about 20 species, primarily native to Europe and Asia. Lilacs are well-known for their fragrant flowers, which bloom in spring and come in various colors, including purple, white, and pink. They are popular in gardens and landscapes for their beauty and pleasant scent. The most common species, Syringa vulgaris, is often cultivated for ornamental purposes. Lilacs thrive in well-drained soil and full sunlight, making them ideal for temperate climates. They are also associated with spring and are often used in floral arrangements due to their appealing appearance and fragrance.