How to Grow Seedless Canadice Plants

Plant Canadice grapes 8 feet apart on a site with full sun and good drainage, such as a southern-facing slope. This grape grows best in deep loam, although it can tolerate a range of soil types, as long as it has good drainage. A southern slope protects Canadice grapes from northern winds and keeps the plants out of a frost pocket. Add lime as required to raise the soil pH to between 5.0 and 6.0.

Water Canadice grapes with 1 to 2 inches of water per week during the growing season in the spring and summer. The soil should remain moist at all times during the growing season for the best fruit production. Discontinue supplemental watering when the Canadice grapevines die to the ground in the fall.

Apply 1/2 pound of 10-10-10 fertilizer to each Canadice plant 1 week after planting them. Spread the fertilizer evenly around the spread of the plant without getting the fertilizer closer than 6 inches from its trunk. Apply 1 pound of fertilizer to each plant one month before the last expected frost of the second year of growth. Increase the fertilizer to 1.5 pounds per plant each year thereafter.

Erect a vertical support such as a trellis for the Canadice plants before they begin their second year of growth. Prune any diseased or weak vines to improve fruit production. Tie the remaining healthy vines to the trellis with flexible twine to avoid cutting the vines.