Pecan (Carya illinoensis) is a common name for a species of hickory in the walnut (Juglandaceae) family. According to archaeological and historical evidence, Asian species of the hickory tree arrived in North America before the first humans crossed the Bering Strait from Asia about 10,000 B.C. Other species are native to the Mississippi River valley. soil with clay subsoil. The term pecan is also applied to the tree's edible fruit. The nuts have a rounded, oblong shape and vary in weight; a pound contains from 25 to 100 pecans.
While there may have been wild pecans in some of Georgia's river valleys, the nuts are generally regarded as nonnative to the state, and their value as a potential cultivated crop was not recognized until the late nineteenth century. By that time landowners began to regard pecans, long a staple of wild native trees from Iowa and Indiana to Texas and Mexico, as a commercial crop. Commercialization of pecans allowed the nut crop to expand into a number of southeastern states (including Georgia) and to New Mexico and California.
In the late 1800s Savannah began producing and marketing pecans on a small scale (about ninety-seven total acres by 1889). By 1910 a "pecan boom" began when southwest Georgia landowners started planting what became thousands of acres of pecans. The orchards, however, were not looked upon as a commercial agricultural venture but as a real estate enterprise. Most of the acreage planted during the fifteen-year boom, from 1910 to 1925, were sold as five- to ten-acre units for homes or small farms. Most of this acreage was concentrated in Dougherty and Mitchell counties.
Those early-twentieth-century plantations consistently remain the center of Georgia's pecan-producing counties today. Modern orchards with plantings of scientifically improved pecan varieties now yield what are called "papershell" pecans, so named because the nuts are easy to crack and shell.