Pumpkins originated in Mexico, where they were first domesticated roughly 10,000 years ago. That makes them one of the oldest cultivated plants in the Americas, predating the domestication of corn and beans by thousands of years. The earliest evidence points specifically to the Oaxaca region of southern Mexico, and from there pumpkins spread across North and Central America long before Europeans arrived.
The Oldest Evidence: A Cave in Oaxaca
The most direct proof of pumpkin origins comes from Guilá Naquitz Cave in Oaxaca, Mexico, where archaeologists recovered well-preserved squash seeds dating back 8,400 to 10,000 years. These seeds, about 14 millimeters long, were carbon-dated using accelerator mass spectrometry, and they belong to the species Cucurbita pepo, the same species that includes the pumpkins carved on porches today.
What’s striking about those dates is the gap between pumpkin cultivation and the arrival of other crops. Mesoamerican peoples spent thousands of years planting and selecting gourds like squash and pumpkins without making any other major transition to farming. In other words, pumpkins weren’t part of a sudden agricultural revolution. They were the beginning of one.
Additional archaeological sites reinforce the picture. Caves in Tamaulipas, in northeastern Mexico, contain pumpkin remains dating to 5,000 to 9,000 years ago. In the Tehuacán Valley of Puebla, remains go back roughly 7,900 years. And in the Southwestern United States, archaeologists have found pumpkin stems, seeds, and rind fragments in ancient cliff dwellings.
The Wild Ancestor Behind Modern Pumpkins
Modern pumpkins descend from small, bitter wild gourds that were nothing like what you’d find at a farm stand. The leading candidate for the direct wild ancestor is a subspecies called Cucurbita pepo ssp. fraterna, a wild gourd still found in parts of northeastern Mexico. Genetic analysis shows that fraterna shares key DNA markers and enzyme patterns with domesticated pumpkins, placing it at the base of the family tree.
The story isn’t entirely straightforward, though. A second wild subspecies, native to the southeastern United States, also contributed genetic material through hybridization. Researchers at the Royal Society used statistical modeling to test competing origin scenarios and found strong support for a hybrid origin, meaning today’s pumpkins carry genes from both wild lineages. Still, the initial domestication likely began with fraterna in Mexico, with cross-pollination adding genetic diversity later.
Those early wild gourds were small, hard-shelled, and too bitter to eat. Early cultivators selected for larger seeds, thicker flesh, and reduced bitterness over many generations, gradually transforming them into something worth cooking.
Two Independent Domestications
Pumpkins and squash actually have two separate origin stories within the same species. The Mexican domestication, roughly 10,000 years ago, produced the subspecies pepo, which includes most of the pumpkins, zucchini, and acorn squash people eat today. A second, independent domestication happened in the southeastern United States about 5,000 years ago, producing a different subspecies called ovifera, which includes crookneck squash and some ornamental gourds.
These two events were separated by thousands of miles and thousands of years, supported by both archaeological and genetic evidence. The fact that the same species was domesticated twice, on different ends of a continent, speaks to how useful these plants were to the people who grew them.
Not All “Pumpkins” Come From the Same Place
The word “pumpkin” gets applied loosely to several different species, and they don’t all trace back to Mexico. Central Mexico is the center of origin for three major cultivated species: the common pumpkin (Cucurbita pepo), butternut squash (Cucurbita moschata), and silver-seed gourd (Cucurbita argyrosperma). But the large pumpkins and winter squashes belonging to Cucurbita maxima, including giant competition pumpkins and kabocha squash, originated in a completely different region: southern Peru, Bolivia, and northern Argentina.
So if you’re looking at a big orange jack-o’-lantern pumpkin, its roots are almost certainly in Mexico. If you’re looking at a massive prize-winning pumpkin at a county fair, its ancestry traces to South America.
How Indigenous Peoples Grew and Used Pumpkins
Long before European contact, Indigenous peoples across the Americas had integrated pumpkins into sophisticated farming systems. The most famous of these is the “Three Sisters” method, in which corn, beans, and squash were planted together in the same mound, sometimes with a fish buried underneath as fertilizer. Each crop supported the others: corn provided a structure for beans to climb, beans fixed nitrogen in the soil, and the broad leaves of squash plants acted as living mulch, shading out weeds and deterring animals like raccoons from reaching the corn.
Pumpkins were eaten roasted, boiled, and stewed. For long-term storage, the flesh was dried and ground into a meal that could be used year-round. This combination of corn, beans, and squash formed the dietary foundation for many Indigenous communities and remains central to food traditions in parts of Latin America today.
How Pumpkins Reached the Rest of the World
Pumpkins crossed the Atlantic as part of the Columbian Exchange, the massive transfer of plants, animals, and diseases between the Americas and the Old World that accelerated after Columbus’s voyages beginning in 1492. Along with corn, potatoes, tomatoes, and chili peppers, pumpkins and squashes were among the New World crops that transformed diets across Europe, Africa, and Asia over the following centuries.
European explorers and colonists encountered pumpkins already being widely cultivated by Indigenous peoples and brought seeds back across the ocean. By the 1500s and 1600s, pumpkins were growing in European gardens, eventually spreading to nearly every inhabited continent.
Where the Word “Pumpkin” Comes From
The word itself traveled almost as far as the plant. It started with the Greek word “pepon,” meaning large melon. French speakers nasalized it into “pompon.” The English adapted that to “pumpion,” the term Shakespeare used in The Merry Wives of Windsor. American colonists eventually shortened and reshaped it into “pumpkin,” the version that stuck.