Citrus/ˈsɪtrəs/ Definition 1 of 3Pro Tip 1/3Botanical Context Understand that 'citrus' references the plant family, not just the fruit. The citrus species originated in Asia before spreading globally. Pro Tip 2/3Cultivation Regions Citrus trees grow in warmer climates and are common in subtropical regions. Florida is well-known for its citrus tree cultivation. Pro Tip 3/3Garden Vocabulary Use 'citrus' to refer to trees or shrubs in gardening and horticulture discussions. Ensure the citrus tree gets enough sunlight for proper growth.