Citrus aurantium, commonly known as bitter orange or Seville orange, is an evergreen tree grown for its glossy foliage, intensely fragrant white flowers, and distinctive aromatic fruit. In spring and early summer, waxy, star-shaped blossoms open among the dark green leaves, releasing a strong citrus scent that carries well in warm air. The rounded orange fruits that follow are highly aromatic and traditionally used for marmalade, flavourings, and essential oils rather than fresh eating. Naturally forming a dense, rounded canopy, this species performs best in a warm, sheltered position and is well suited to container growing, conservatories, or patios where it brings year-round structure, scent, and ornamental appeal.