Grow your own grapevines in your backyard and enjoy juicy, succulent grapes when they are ready. People usually grow grapes by cuttings or stock because seeds require cold stratification to end dormancy and assist in germination. However, growing grapes by seeds is rewarding and a fun project, especially if you have children, who will learn about seeds, cold stratification and plant growth. With a little patience your grape seeds will sprout and grow into delicious grape-producing vines. Eat your homegrown grapes raw, use them in savory desserts or make jams and jellies from them.
Extract seeds from grapes and put them in a bowl of warm water for up to 10 minutes to remove any surrounding pulp. Scrub them gently with an old toothbrush if necessary. Put the seeds on a dry paper towel on a table and allow them to air dry for a week to 10 days.
Place the seeds between two layers of moist peat moss in a zipper bag. Lock the bag and place it in the refrigerator for 12 weeks. This period of cold stratification is necessary to break dormancy and encourage the seeds to germinate. Check the bag frequently to ensure the peat moss is always moist; mist when needed.
Fill 4-inch pots with good quality potting soil until they are 3/4 full. Remove the refrigerated seeds after the stratification period and push three to four seeds 1/4 inch deep in each pot. Mist the soil lightly, and slide each pot in a clear plastic bag.
Place the pots in a room, away from direct sunlight, for four to five weeks, or until they germinate. Make sure the temperature of the room is consistent at 75 degrees Fahrenheit to encourage germination. Mist frequently to prevent the soil from going dry.
Remove the plastic from the pots once the seeds germinate, and place them on a windowsill or another dry, sunny location. Keep the soil evenly moist at all times, but do not overwater.
Transplant each seedling to a bigger pot once it is 3 to 4 inches tall. Fill the pots with good quality potting soil. Make sure the pots have drainage holes, or drill them yourself. Transplant the seedlings outdoors in the soil after a year.