Grape vines produce juicy fruit that is good for fresh eating, juice, jelly and wine, and there's a wide variety of grapes with different flavors and cultivation requirements. If there is a grape vine in someone else's garden that you would like to grow, take a cutting from that vine, root it, and plant it in your own garden. Grape vines are generally very strong and hardy, and it's easy to grow a new grape vine from an existing vine.
Select a healthy, vigorous grape vine from which to take your cutting. Grape vines should only be cut when the plant is dormant, in the late fall, early spring, or in the winter, when there are no leaves on the vine. Harvesting a grape vine cutting in the spring will often yield more consistent results.
Cut a section from the existing grape vine with a sharp knife. Grape vines produce buds at every bend in the stem, and the cutting should have at least three or more buds on it. Make the cut just an inch or two below a bud. The wood inside should be green, dense and moist, not yellow, tan, dry or pithy.
Store cuttings in a cool place, such as refrigerator or unheated garage or root cellar. Do not let them freeze. Keep the cutting in a plastic bag, wrapped in a moist paper towel or buried in moist peat moss to keep them hydrated. Grape vine cuttings may be stored for many months, although it's best to try to plant them right away.
Fill a pot with either soil or a half-and-half mixture of sand and peat moss. Bury the grape vine up the second or third bud. The growing medium should be kept loose and not be compacted.
Water the grape vine cutting well and keep it in a warm, humid location away from direct sunlight. In cooler climates, keep the cutting indoors for the first few weeks. Placing a plastic bag loosely over the top of the pot will help retain humidity.
Move the cutting outside after it has rooted and the danger of frost has passed. A rooted grape vine cutting will be securely attached to the soil and will not wobble much when gently nudged. Slowly harden off the grape vine cutting by putting it outside for an increasing amount of time every day.
Plant your grape vine in a south-facing location with full sun and well-drained soil.