Nectarines originated in China, where they were first cultivated thousands of years ago alongside peaches. In fact, nectarines are not a separate species at all. They are peaches, just with a single genetic difference that gives them smooth skin instead of fuzz. From China, nectarines spread across ancient Persia, Greece, and Rome before eventually reaching the rest of the world. Today, China still dominates global production, growing 71% of the world’s supply.
Nectarines Are Genetically Almost Identical to Peaches
The difference between a nectarine and a peach comes down to one gene. Peach skin is covered in tiny hairs called trichomes, which give it that familiar fuzzy texture. In nectarines, a small piece of rogue DNA (called a retrotransposon) inserted itself into the gene responsible for producing those hairs. That insertion essentially breaks the gene, creating a premature “stop” signal that prevents the protein from forming properly. Without a working copy of this gene, the fruit develops smooth skin instead of fuzzy skin.
This is a recessive trait, meaning a tree needs two copies of the broken gene to produce nectarines. A peach tree can occasionally produce a nectarine on one of its branches through a natural bud mutation, and nectarine trees can sometimes sprout a fuzzy peach. The two fruits share the same species name and can cross-pollinate freely. Beyond the skin, nectarines tend to be slightly smaller and firmer, with a bit more vitamin C per fruit and a somewhat tangier flavor profile.
From Ancient China to Global Crop
Nectarines followed roughly the same path as peaches through the ancient world. After their initial cultivation in China, they appeared in Persia, then spread westward through Greece and Rome along early trade routes. By the 1600s, nectarines were being grown in England and other parts of Europe. They eventually made their way to the Americas with European colonists.
Commercial production didn’t take off until the 20th century, when breeders developed varieties better suited to large-scale farming. Modern nectarines are significantly larger, sweeter, and more uniform than their ancient ancestors, the result of decades of selective breeding focused on flavor, shelf life, and disease resistance.
Where Nectarines Are Grown Today
China is by far the world’s largest producer, growing roughly 17 million metric tons of peaches and nectarines combined in the 2025/2026 growing season. The European Union comes in second at about 3.12 million metric tons (13% of global production), with Spain, Italy, and Greece as the major contributors. The United States ranks third, producing around 732,000 metric tons, which accounts for about 3% of the global total.
Within the U.S., nectarine production is overwhelmingly concentrated in California. The state grows 94% of the country’s nectarines, with Fresno and Tulare counties in the San Joaquin Valley responsible for 86% of California’s crop alone. The warm, dry summers and mild winters of central California provide near-ideal conditions for stone fruit. South Carolina, Georgia, and Washington state grow smaller quantities.
What Nectarine Trees Need to Thrive
Nectarine trees are temperate fruit trees that require a period of winter cold to produce fruit the following season. This is measured in “chill hours,” the number of hours a tree spends between roughly 32°F and 45°F during winter dormancy. Most nectarine varieties need between 400 and 900 chill hours, though low-chill varieties have been bred for warmer climates like Florida and southern Texas.
Beyond winter chill, nectarine trees need well-drained soil, full sun, and a relatively dry climate during the ripening period. Humid conditions promote fungal diseases like brown rot, which is why production centers in places like California’s Central Valley, parts of Spain, and northern China, all of which have dry summers. Trees typically begin producing fruit two to four years after planting and reach peak production around year six or seven, continuing to bear fruit for 15 to 20 years with proper care.
Clingstone, Freestone, and Semi-Freestone Varieties
Like peaches, nectarines come in three categories based on how the flesh attaches to the pit:
- Freestone: The pit separates easily from the flesh. Cut one in half and the two sides pull apart cleanly. These are the most popular for eating fresh.
- Clingstone: The pit clings tightly to the surrounding flesh, making it difficult to separate. Clingstones tend to be juicier and sweeter, so they’re often used for canning and cooking.
- Semi-freestone: A hybrid of the two. The pit is attached but comes away with less effort than a true clingstone.
Nectarines also come in yellow-fleshed and white-fleshed varieties. Yellow nectarines have a balanced sweet-tart flavor, while white-fleshed types tend to be sweeter and less acidic. White nectarines are more common in Asian markets, where they’ve been popular for centuries, and have become increasingly available in U.S. grocery stores over the past couple of decades.