According to the website grapesweb.com, archaeological evidence shows that grapes have been cultivated for home consumption since 6,000 B.C. There are over 5,000 species of grapes grown for commercial use. Across the world, these grape varieties are known by 20,000 different names. Because the process of growing grapes has been long-established, there is little guesswork in growing grapes. Most vineyards grow grapes in rows on wire trellises. Although spacing of grapes will not affect the plants, it can have a dramatic impact on the quality of the grape fruits. Grape vines cannot be moved once established, so care must be taken to space your grapes precisely.
Place a garden hose in a straight line to serve as a guideline for your row of grapes. In the grape row's second year, you will erect a wire trellis along this row to support your grape vines. You should allow 6 feet of space between your grape rows.
Measure the trellis length with a tape measure.
Research your variety of grapes to learn the space for your particular grape vines. Individual grape species have different spacing requirements.
Divide the spacing requirement of your particular grape vine by the length of your row to find out the maximum number of vines you can plant in the row. For example, if you have a vine variety that requires 4 feet of space and a 12-foot row, you can plant three vines on that row.
Walk the length of your row with a tape measure and place a dusting of baking flour in the spot where you will plant your vines to mark the location. Unlike spray paint, baking flour will not leave chemicals in your garden soil.
Dig a hole in the spot you have marked for the root ball of your plant that is slightly larger than the plant. Place the vines in your planting hole, and cover with soil.
Pound a stake into the ground next to the root ball with a rubber mallet. Tie the vine to the stake. This will keep the vine off the ground for its first year until it is large enough to tie to a trellis.