Wait until after the vines have gone dormant to collect propagation material. Select one-year-old growth slightly larger than a pencil. Collect long, straight shoots from which to make cuttings. It is best to take a 6 foot or so shoot and then start making cuttings at the base of the shoot.
What is the best time of year to take grape cuttings?
The best time for starting grape vines from cuttings is in the spring of the year. The later in the season you start your cuttings the less likely you will be to achieve rooting. From a healthy grape vine that preferably has it's original root stock go along the top and select a healthy new vine.
How long does it take for grape vine cuttings to root?
Keep your plant in a warm, humid environment. Grape plants started from greenwood cuttings should begin to develop roots in 1-2 weeks.