- 1). Choose a well-draining site for the grapevines that is in full sun. Plant in the spring as soon as you can work the ground.
- 2). Dig the hole large enough to spread the roots out easily without breaking them. Plant the vine at the same depth it was in the nursery container. Cover the roots with soil and tamp down gently. Add a soil amendment such as compost or peat moss to loosen heavy clay soils and aid drainage, if necessary.
- 3). Water the new vines generously. Irrigate the vines during dry periods, soaking the ground thoroughly to reach the root system. Water deeply but infrequently for best results.
- 4). Train the strongest central cane to a strong stake about 5 to 6 feet tall. As the vine grows, remove the suckers that emerge from the base of the cane and adjust the cane on the support. Continue the adjustments on the support as the vine grows and as the developing fruit adds weight.
- 5). Apply 8 oz. of 10-10-10 fertilizer seven days after planting. Spread the fertilizer 6 to 12 inches from the trunk of the vine. Increase the amount to 1 lb. in early spring for the second year and 1 1/2 lbs. in succeeding years.
- 6). Weed areas around the base of vines to prevent competition for water and nutrients.
- 7). Monitor the vines for signs of pests or fungal diseases. Apply the best treatment for your area as recommended by your local agricultural extension service.
- 8). Harvest the grapes when the color and taste indicates ripeness. Seedless concord grapes will not increase their sugar content after being harvested from the vine.
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