Arugula

Arugula belongs to the mustard family, alongside cabbage, radish, and watercress. The cultivated plant most often sold as arugula or garden rocket is Eruca vesicaria, a species native across the Mediterranean region and into western Asia. Its precise domestication history is difficult to reduce to one place because people gathered and cultivated rocket greens across this broad landscape for centuries.

Ancient Mediterranean societies knew the plant both as a leafy vegetable and as a source of oil-rich seeds. Farmers gradually favored tender, flavorful forms for cultivation, while wild and weedy populations continued growing in fields, roadsides, and other disturbed ground. Its sharp taste comes from glucosinolates, sulfur-containing compounds common throughout the mustard family.

The word “arugula” entered American English through Italian, while “rocket,” derived through older European names for the plant, remains common in Britain and elsewhere. The market category can be confusing: wild rocket, usually Diplotaxis tenuifolia, is a related Mediterranean species with narrower leaves and an especially intense flavor, not simply a wild form of cultivated arugula.

Today arugula is grown widely in temperate farming regions and as a cool-season crop in warmer climates. Italy and Spain remain strongly associated with it, while California and Arizona are important sources for the United States market. Its modern popularity is global, but its botanical and agricultural roots remain firmly tied to the Mediterranean world.