Things are planted as seeds, cuttings, seedlings, or plants.
Procedures vary considerably.
Seedlings are merely small or young versions of the adult tree. They are usually available in several sizes, from several inches to two feet in height, and are usually bare-rooted for spring planting. Seeds range from mere dots to large nuts, such as hlack walnuts, acorns, peach pits and the like. Cuttings are sections of a vine or branch which are placed in soil or planting medium to sprout roots. These will become clones of the parent plant, and this technique is very common for such species as cottonwood, willows, and grapes.