Capers come from the Mediterranean region, where the caper bush (Capparis spinosa) has grown wild for thousands of years. The plant is also native to parts of Asia and the Arabian Peninsula, thriving in dry, rocky terrain where few other crops survive. People have been eating capers for at least 4,000 years, and likely much longer.
The Caper Bush’s Native Range
The caper bush is a hardy, sprawling plant that grows naturally across a wide arc stretching from the western Mediterranean coast through the Middle East and into Central Asia. It favors poor, gravelly soil and intense sun, which is why you’ll find it clinging to stone walls, cliff faces, and dry hillsides across southern Europe, North Africa, and the Arabian Peninsula. This tolerance for harsh conditions is part of why capers have been gathered from the wild for millennia, long before anyone thought to cultivate them in neat rows.
The plant produces round, fleshy flower buds, which are the “capers” you buy in jars. If left to bloom, those buds open into striking white-and-purple flowers, which then develop into olive-sized fruits called caper berries. Both the buds and the berries are edible, though the small pickled buds are far more common in Western cooking.
Archaeological Evidence of Early Use
The oldest traces of caper consumption come from the lower Mesolithic period, roughly 9,500 to 9,000 years ago. Remains from that era suggest people in the eastern Mediterranean were already gathering and eating wild capers as hunter-gatherers, well before the invention of agriculture.
By the Bronze Age, capers had moved from foraged snack to stored pantry item. At the ancient site of Tell es-Sweyhat in Syria, archaeologists found carbonized flower buds and unripe caper fruits inside a jar dated to roughly 2400 to 1400 B.C. The buds appeared to have been deliberately stored as a condiment, making this one of the earliest signs that people were preserving capers much the way we do today.
Farther east, remarkably well-preserved caper seeds were discovered in the Yanghai Tombs in northwestern China, dated to about 2,800 years ago. Researchers described these as the best-preserved caper seeds ever found and the earliest physical evidence of capers being used medicinally. The discovery highlights how far the plant’s reputation had traveled from its Mediterranean heartland along ancient trade routes into Central Asia.
Capers in Ancient Medicine
Long before capers were a pizza topping, they were medicine. Ancient Egyptians and Arab healers used caper root to treat liver and kidney diseases. Ancient Romans turned to capers for paralysis. These weren’t fringe remedies. Different parts of the plant, including the roots, bark, fruits, and buds, held a place in formal healing traditions across multiple civilizations.
That medicinal reputation persisted for centuries and spread across continents. In Morocco, capers were traditionally used to manage diabetes. In northern Pakistan, the root bark treated enlarged spleens and mental disorders. In Iran, capers addressed hemorrhoids and gout. In China’s Xinjiang region, the plant became part of traditional Uighur medicine for rheumatoid arthritis. The range of ailments people tried to treat with capers is striking: toothache, fever, headache, menstrual problems, rheumatism, convulsions, skin diseases, sciatica, and ulcers all appear in historical records. Modern research has confirmed that caper plants contain high levels of protective plant compounds, including flavonoids and other antioxidants, which helps explain why so many cultures independently reached for the same plant.
Where Capers Are Grown Today
Commercial caper production is still concentrated in the regions where the plant originated. Turkey is the world’s dominant producer and exporter, followed by Morocco, Lebanon, Syria, Uzbekistan, and Kyrgyzstan. Syria alone produced an estimated 4,000 tons in 2006, before the country’s civil war disrupted its agricultural sector. Spain and Italy, particularly the Italian islands of Pantelleria and Sardinia, also produce highly regarded capers, though in smaller volumes.
Most capers are still picked by hand, which keeps production labor-intensive and prices relatively high for such a small ingredient. The buds must be harvested in the early morning before they open, then sorted by size. Smaller buds, sometimes labeled “nonpareil,” are generally considered more desirable for their firm texture and concentrated flavor.
Wild vs. Cultivated Capers
Wild caper bushes still grow abundantly across the Mediterranean, and in many areas people continue to forage them. Research comparing wild and cultivated capers from Sardinia found meaningful differences in their chemical makeup. Wild plants and farmed plants contained different concentrations of flavonoids, anthocyanins, and other protective compounds, with levels varying significantly depending on where the plant grew. One key compound ranged from 112 to 364 milligrams per 100 grams of fresh weight across different samples, a threefold difference driven largely by growing conditions.
For the home cook, this translates into real flavor variation. Capers from different regions taste noticeably different, much like wine grapes reflect their terroir. Salt-packed capers from Pantelleria have a different punch than brine-cured Turkish capers, and wild-harvested capers from a Greek hillside will differ from both. If you’ve only ever tried one type, experimenting with capers from a different origin can genuinely change a dish.