Growing large crops of grapes can be a labor of love for many grape growers. While it's true that grape growing is a science on a large scale, it can be easier when there are only one or two plants to care for. If you want just a small portion of grapes, try to grow grapevines in pots in a greenhouse, deck or patio. Good varieties of grapes for container growing are non-vigorous varieties such as Delaware and Golden Muscat.
Prepare a pot for the grapevines that is at least 18 inches in diameter. Layer the bottom 1 inch of the pot with gravel. Mix 2 parts garden loam, 1 part leaf mold and 1 part coarse sand and add it to the pot. Fill the pot halfway to the top with the mixture.
Transplant the grapevine into the center of the pot and work the soil around it. Add more soil as needed to fill the pot to within 1 inch of the top. Set a garden stake or bamboo pole into the center of the pot as close to the grapevines as possible. Push it into the soil 1 foot deep.
Water the grapevine well to dampen the soil evenly throughout. Check the soil with a finger 1 inch deep into the pot and water anytime the soil feels dry. Keep the pot outside in full sun during the summer and indoors during the winter, or in a greenhouse or sunroom year-round.
Train the main stem to a garden stake with ties as it grows until the leaves drop in its first fall. Clip off the top of the main stem at the top of the support stake and any side shoots from the main stem almost all the way up the vine. Leave three stems growing out at the top of the vine, but clip them back so each stem only has two buds.
Continue to water the vines into spring as you allow the buds to become stems of their own. Clip each stem back at a point two leaves beyond a flower cluster. Clip it back after a length of five leaves if a stem doesn't have a flower cluster. Clip any shoots off of these stems so that they hold only one leaf.