Grapes were one of the earliest fruits to be cultivated, and they were harvested from wild vines long before they were domesticated. They're one of the longest-lived types of domestic vegetation today: A single grape vine can live up to 100 years if left in one place. But grape vines do not respond well to transplanting. Instead, new vines should be taken from cuttings. A grape vine will root easily from stem cuttings if obtaining grape shoots is done correctly.
Select your shoots from a grape vine that is hardy and disease-free, with a history of producing superior grapes.
Time your cutting for late fall or early spring when the vines are dormant.
Sharpen a pair of pruning shears before making your cuttings to avoid pinching or bruising your vine.
Soak a cloth in a bleach solution and swipe your shear blades with the cloth in between cuttings to prevent spreading disease.
Cut sections from a cane that contains at least 3 points where grape leaves emerge from the cane. The point where the grape leaves emerge is called a node. Make each cut straight across the cane just below the node. The cut on the upper end of the cutting should be made at a 45 degree angle so you can tell the bottom from the top.
Remove all vegetation from the cutting along the lower 2/3 of the plant. Dip the bottom of the cutting in rooting hormone.
Fill a 6-inch container with peat moss and water until it is as wet as a wrung out sponge. Insert the cutting so that the second node is at the soil level. Loosely cover the cane with soil. Place the container in a humid environment such as a greenhouse, or cover it with a freezer bag and place in a sunny windowsill out of direct sunlight.
Once cuttings have rooted, remove the freezer bag and move the plant outside if the temperatures are above freezing. Keep the plant out of direct sunlight and keep it outside for a few hours per day, leaving the plant outdoors for longer periods of time each day until the plant is "hardened off," or able to stay outside all day.
Transplant the cutting into your vineyard once the cutting has been hardened off.