Nectarine trees will grow from seed and reach the stage of bearing fruit in their natural state, although various grafted cultivars are sold in nurseries. The trees are prone to a disease called leaf curl, which does not affect the fruit crop, merely the aesthetics of the tree, and the fruit is very susceptible to brown rot.
Nectarines and peaches are closely related, and occasionally, a crop of nectarines will produce one or two peaches, and vice versa.
A nectarine tree in full-bloom