The peach is a relative of the apricot, almond, cherry, and plum. All of these have edible kernels or stones. The stone of a peach is usually about 1 inch (2.5 cm) long. Peaches are sometimes classified by how their stones cling to their flesh. That may also say something about when the peach ripens.
A clingstone peach will be firmly textured and its flesh will adhere to the stone. Clingstones peaches usually mature early and are used primarily for cooking or canning. Semi-freestone peaches usually ripen midseason. They are good for cooking or eating out of hand. Freestone peaches usually ripen later in the season. Because the texture of a freestone peach is usually soft, the pit will often fall away freely. These peaches are best for using fresh.
The largest peach producers in the world are Italy, the United States, China, and Greece. Next to the apple, the peach is the most widely cultivated fruit in the world. Today's peaches are believed to be descended from the Chinese wild peach. Peaches were first cultivated in China more than 2,500 years ago. In China, the peach is a symbol of longevity and immortality.