Orange blossom comes from the flowers of the orange tree (Citrus sinensis or Citrus aurantium) — small, waxy white flowers with an intensely sweet fragrance, blooming in spring on evergreen trees native to Asia that have spread across the Mediterranean over centuries. Harvesting usually takes place in the first morning light, before the day's heat can disperse the delicate essential oils. Botanically, orange blossom thus comes from the very same trees that, depending on the species, also yield the sweet orange fruit or, in the case of the bitter orange, the precious neroli oil and petitgrain — three entirely different incense and fragrance materials from one and the same plant family.

Across many Mediterranean and Middle Eastern cultures, orange blossom water has long been a staple of the kitchen, from Middle Eastern pastries to French and Spanish desserts. In Mediterranean wedding tradition, particularly in Sicily, where the blossom is known as "zagara," orange blossom was also long seen as a symbol of purity and fertility, adorning bridal bouquets and wreaths. As incense in its own right, the dried blossoms themselves are burned — distinct from the distilled neroli oil, prized in perfumery since the 17th century, which comes from the very same flowers but is an entirely separate product. Beyond the culinary uses already mentioned, dried orange blossoms are still scattered directly onto charcoal in many North African households today to scent living spaces — a distinct, older tradition alongside the later practice of distilling them into neroli oil or orange blossom water. In Iran, orange blossom water is also used to prepare "sharbat-e bahar narenj," a refreshing summer drink.

Burned, orange blossom releases a delicate, sweet-floral scent with a faint citrus freshness. It is said to have a both invigorating and calming effect, associated with feelings of joy, purity, and new beginnings. This versatility — the very same blossom yielding entirely different fragrances depending on how it is processed — makes orange blossom a particularly adaptable chapter within the citrus family. Anyone who experiences both forms side by side — the burned blossom and the distilled oil — discovers two surprisingly different facets of one and the same plant.