Lilas, commonly known as lilacs, are flowering plants belonging to the genus Syringa. They are well-known for their fragrant purple, blue, or white blossoms that bloom in spring. Lilacs are popular in gardens and landscapes due to their attractive appearance and pleasant scent. They thrive in temperate climates and prefer well-drained soil and full sunlight. These plants can grow as shrubs or small trees, reaching heights of 5 to 15 feet. Lilacs are also valued for their ability to attract pollinators like bees and butterflies. Additionally, they have a long history of cultivation, with some varieties dating back to the 16th century.