Place the grape seeds between two moist paper towels. Put the paper towels in a freezer bag inside the drawer of your refrigerator for at least three months. This encourages germination of the seeds.
Fill nursery trays three-quarters full with an all-purpose potting mix. Remove the seeds and place them in the nursery pots. Cover the seeds lightly with potting mix.
Water the seeds regularly to keep the soil moist and keep them in a cool location for at least a year.
Transplant the seedlings into their permanent location in the garden in the spring. Plant the seedlings in a location that gets at least eight hours of sunlight a day.
Dig a hole large enough for the roots to spread out. Space plants 6 to 8 feet apart from one another to allow them room to grow. Refill the hole with native soil.
Water the base of the plants with 2 to 3 inches of water every other day during the growing season.
Fertilize each plant with 1 pound of nitrogen fertilizer. Add 1 pound of fertilizer to the growing vines each spring.
Apply 4 to 6 inches of mulch at the base of the plants to hold in water and to prevent weeds.
Stake the grapes until they reach a height of around 3 feet. Train the grapes along a wire fence that has been constructed next to the vines. Tie the vines to the wire as they begin to grow.
Prune your grape vines in late fall. Cut them back 3 or 4 feet and remove any diseased or dead vines.