Wait until the end of spring to purchase your grape vine. Small buds will begin to appear on the plant.
Drill three drainage holes at the bottom of a 3-foot-wide container, if necessary. Drill the three holes in the shape of a triangle.
Pour 2 inches of pebbles in the container. The pebbles will encourage excess water to drain through the holes.
Fill the container with potting soil, stopping about 3/4 of the way from the top.
Remove the grapevine from the packaging. Place the bare root of the grapevine into a bucket of water. Let the vine soak for 15 minutes in the water.
Gently comb the roots with your fingers in a downward motion. Take care not to damage the roots.
Place the grapevine on top of the potting soil. Pour more potting soil in the container, stopping about 1 inch from the top or whenever the roots are completely covered.
Water the grape vine with a watering can or hose until the soil is very moist. Extra water will run out of the holes at the bottom of the container.
Insert a trellis into the soil about 2 inches away from the root ball.
Place your grapevine in an area that gets a full day of sunshine. If the threat of frost is over, put the grapevine outside. Bring the grapevine inside before the first frost of autumn.
Leave the grapevine in the container as it grows. A 3-foot pot is large enough to grow the grape vine to maturity. Transplanting the vine at maturity will prevent damage to the roots.