Overview

Alfalfa (Medicago sativa) is a perennial flowering plant in the pea family Fabaceae, cultivated worldwide primarily as a forage crop for livestock. The plant’s tender young sprouts are also eaten as a vegetable, particularly in East Asian and Latin American cuisines. The flavor of alfalfa sprouts is mild, grassy, and slightly nutty, while the mature plant is fibrous and bitter.

Origin and history

Alfalfa is native to Central Asia, with evidence of cultivation in Iran (ancient Persia) dating back over 4,000 years. It spread to Greece and Rome by the first millennium BCE, and later to the Americas via Spanish colonizers in the 16th century. The name “alfalfa” comes from the Spanish adaptation of the Arabic word “al-fisfisa,” meaning “fresh fodder” [2][3]. In the United Kingdom, South Africa, and New Zealand, the plant is more commonly called “lucerne,” derived from the Latin “lucerna” (lamp), a reference to the shiny seeds [1]. Alfalfa became a major agricultural crop in the United States during the 19th century, particularly in the arid West, where its deep root system made it drought-resistant.

Varieties and aliases

  • Lucerne (common name in UK, South Africa, New Zealand)
  • Alfalfa sprouts (the young, edible shoots)
  • Cao Tou (Chinese: 草头; Shanghai/Jiangsu region, typically refers to tender young clover sprouts, e.g., Medicago polymorpha, though some sources loosely include alfalfa)

Culinary uses

Alfalfa is most commonly consumed as raw sprouts, used in salads, sandwiches, and wraps for a crisp texture and mild flavor. In Chinese cuisine, particularly in the Shanghai and Jiangsu regions, tender young clover sprouts (cao tou) are stir-fried over very high heat with a splash of Shaoxing wine and white pepper, a quick vegetable dish that highlights the plant’s delicate nature [4]. In Peruvian cuisine, alfalfa is a key ingredient in emoliente, a warm street drink made from a multilayered infusion of toasted barley, flaxseed, alfalfa, horsetail, plantain, and other herbs, sold from pushcarts at dawn and dusk, according to catalog entries [5][6]. The mature plant is almost exclusively used as animal fodder and is not consumed by humans due to its tough texture.

Cross-cuisine context

Alfalfa sprouts have no direct analogue in Mexican cuisine, where sprouted seeds are less common as a standalone ingredient. The closest Mexican parallel might be germinated seeds like those of amaranth (alegría) or chia, but these are typically consumed as whole seeds or in beverages, not as fresh sprouts. In East Asian cuisines, alfalfa sprouts are functionally similar to bean sprouts (mung bean or soybean), though bean sprouts are thicker and crunchier. In Peruvian cuisine, alfalfa’s role in emoliente places it in a category of medicinal herbs used in hot infusions, a tradition that has no direct Mexican counterpart, though Mexican aguas frescas and herbal teas (tés de hierbas) serve a similar everyday beverage function.

Notes for cooks

  • Alfalfa sprouts are highly perishable and should be stored in the refrigerator in a breathable container; use within 3 to 5 days of purchase.
  • For stir-frying (as in cao tou), use only the tenderest young shoots and cook very quickly over high heat to preserve texture and color.
  • When substituting alfalfa sprouts in recipes, mung bean sprouts or sunflower sprouts offer a similar crunch, though the flavor will be slightly different.