How to Grow Seedless Flame Grapes

Written by megan mattingly-arthur
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Vitis vinifera "Flame Seedless" is a popular grape cultivar that is prized for its seedless red grape bunches. A fast-growing, deciduous grapevine, "Flame Seedless" grows best in United States Department of Agriculture (USDA) plant hardiness zones 7 through 9. Though young vines require frequent irrigation, established grapevines can be successfully cultivated with very little care. Seedless flame grapes grown in your garden or home landscape can be eaten fresh or made into juice, jelly or jam.

Skill level:
Moderately Easy

Things you need

  • Peat moss
  • Compost
  • Perlite
  • Shovel
  • Tiller
  • Garden hose
  • 10-10-10 fertiliser
  • Pruning shears

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  1. 1

    Choose a planting location that meets the long-term needs of your grapevines. Select a sunny location that receives eight or more hours of direct sunlight per day. Look for a spot that also offers well-draining soil; flame grapes can tolerate a variety of soil types, but insist on soil with good drainage.

  2. 2

    Enrich the soil at your chosen location with organic material before planting your flame grapes. Cover the soil with a 3-inch layer of equal parts peat moss, compost and perlite. Work the organic materials into the top 18 inches of soil with a shovel or garden tiller.

  3. 3

    Dig planting holes for your flame grapes that are large enough to accommodate the size of their root systems. Allow at least 5 feet of space between each hole when planting multiple vines. Place the vines in their prepared holes and position them so that they sit at the same level they were growing in their nursery containers. Return the displaced soil to the hole and tamp down the surface.

  4. 4

    Water your grapevines immediately after planting to moisten the soil and eliminate the presence of root-drying air pockets. Provide young vines with frequent irrigation to help them develop a strong root system. Water established flame grapes only during dry spells that last longer than two weeks.

  5. 5

    Fertilise your flame grapes lightly in the spring to encourage hearty growth throughout the rest of the growing season. Feed the plants with a half-application of granular 10-10-10 fertiliser applied according to package instructions. Avoid overfertilizing your grape vines, as this can stimulate wood and foliage growth, but suppress grape production.

  6. 6

    Prune your grapevines annually between January and March, while the vines are in their dormant phase. Prune the vines to control their size or remove any diseased, damaged or dead wood. Stimulate vigorous growth by removing approximately 50 per cent of the previous season's growth. Use sharpened and sterilised pruning tools to avoid the spread of plant diseases.

Tips and warnings

  • Flame grapevines look exceptionally beautiful when planted near an arbor, trellis, fence or pergola.
  • Grapevines are susceptible to problems with insect pests such as aphids and grape leaf skeletonizer. Consult your local agricultural extension office for prevention and treatment advice.

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