A citrus tree is a type of fruit-bearing tree that belongs to the family Rutaceae. These trees are known for producing popular fruits such as oranges, lemons, limes, and grapefruits. They thrive in warm, subtropical, and tropical climates, requiring plenty of sunlight and well-drained soil to grow effectively. Citrus trees are evergreen, meaning they retain their leaves year-round. They typically have glossy, dark green leaves and fragrant white flowers. The fruits develop from these flowers and can vary in size, color, and flavor, making them a favorite among gardeners and fruit lovers alike.