Bell peppers originated in Mexico, where they were first cultivated roughly 7,000 to 9,000 years ago. They are one of the oldest crops in the Americas, domesticated around the same time as maize and squash. Today they’re grown on every inhabited continent, with China producing more than any other country.
Wild Origins in Central-East Mexico
The bell pepper belongs to the species Capsicum annuum, which descends from a small, wild ancestor that still grows across parts of Mexico today. Genetic, archaeological, linguistic, and ecological evidence all point to central-east Mexico as the most likely region of initial domestication, spanning from southern Puebla and northern Oaxaca to southern Veracruz. A 2014 study published in PNAS pinpointed this area after cross-referencing four independent lines of evidence, noting that the earliest known pepper remains were found in dry caves in the Valley of Tehuacán (Puebla) and the Ocampo caves (Tamaulipas).
Those ancient pepper specimens sat alongside remnants of maize, squash, and other crops, and radiocarbon dating of the surrounding strata places them at roughly 9,000 to 7,000 years before present. That makes peppers one of the first plants cultivated in the New World. The oldest reconstructed word for “chili pepper” comes from Proto-Otomanguean, a language spoken about 6,500 years ago in the same region, reinforcing the idea that people in central-east Mexico had been growing and naming these plants for thousands of years before pottery even existed there.
Why They’re Called “Peppers” at All
Bell peppers have nothing to do with black pepper. The name is a historical accident courtesy of Christopher Columbus. When Columbus sailed west in 1492, his sponsors Ferdinand and Isabella hoped he’d return with black pepper, one of the most valuable spices in the European trade. Instead, Columbus encountered a completely different plant that the Taíno people called axí. The fleshy fruits had a bite to them, so Columbus labeled them pimiento, the Spanish word for pepper, and shipped them back to Europe as a substitute.
Historians believe Columbus likely knew these weren’t true pepper plants, but he had little reason to correct the confusion. He even wrote that the new “peppers” were more valuable than the common sort. The name stuck, and centuries later we’re still using “pepper” for two entirely unrelated plant families. Black pepper comes from a tropical vine native to South Asia. Bell peppers are berries in the nightshade family, related to tomatoes, potatoes, and eggplant.
How Bell Peppers Spread Worldwide
After Columbus brought peppers to Spain in the 1490s, they spread rapidly through Europe, Africa, and Asia along Portuguese and Spanish trade routes. The warm climates of southern Europe, West Africa, India, and Southeast Asia suited the plants well, and within a century peppers had become staple ingredients in cuisines from Hungary to Thailand. Bell peppers, the mild, thick-walled variety with no heat, were selectively bred over generations from their spicier relatives. Breeders chose plants that produced larger, fleshier fruit with little to no capsaicin, the compound responsible for the burning sensation in hot peppers.
What Makes Them Change Color
A green bell pepper is simply an unripe one. Left on the plant longer, it will turn yellow, orange, or red depending on the variety. The color shift happens through two simultaneous processes: the green pigment (chlorophyll) breaks down while colored pigments called carotenoids accumulate. Red peppers contain a carotenoid unique to the pepper family that only appears in fully ripe fruit. Yellow varieties accumulate different carotenoids and never develop the red pigment.
This is why red, orange, and yellow bell peppers cost more at the grocery store. They require several additional weeks on the vine compared to green peppers, which ties up growing space longer and increases the risk of disease or weather damage. The extra ripening time also increases sugar content, which is why colored peppers taste noticeably sweeter.
Where Bell Peppers Are Grown Today
China is the world’s largest bell pepper producer by a wide margin, followed by Mexico, Turkey, Indonesia, and the United States. Within the U.S., production is concentrated in a handful of states. California alone accounts for about 51 percent of domestically grown bell peppers, followed by Florida at 26 percent. Georgia, New Jersey, North Carolina, Ohio, and Michigan round out the rest, each contributing between 2 and 6 percent.
Domestic shipments peak during the summer months, with June seeing the highest volume. But bell peppers are available year-round in American grocery stores because imports, primarily from Mexico, fill the gap during winter and early spring when domestic harvests drop off. Greenhouse production, particularly in the Netherlands, Canada, and Mexico, has also grown significantly, allowing consistent supply regardless of outdoor growing seasons.
Botanically a Fruit, Culinarily a Vegetable
Bell peppers are classified as berries. They develop from a single flower’s ovary, contain seeds inside a fleshy wall, and meet every botanical criterion for a true fruit. They belong to the nightshade family alongside tomatoes, which share the same fruit-that-we-treat-as-a-vegetable identity. In the kitchen, of course, nobody puts bell peppers in a fruit salad. The distinction is purely scientific, but it does explain why pepper plants need pollination and warm weather to produce well, and why the “fruit” ripens through the same pigment chemistry seen in other berries.