How to Grow Traminette Grapes

Plant Traminette grapes in soil that is primarily loam, although it can also contain sand and clay. Add limestone to the soil if needed to increase the soil pH to between 7 and 8.

Fertilize Traminette grapes annually, especially during the first year after planting. Younger vines have a greater need for phosphorus in fertilizer as this encourages good root development. Apply the fertilizer early in the growing season, so that the plants have time to harden off their growth before the first frost.

Provide Traminette with dappled shade by planting them under taller trees, especially in warmer climates. Grapevines in U.S. Department of Agriculture hardiness zones 8 and higher typically grow better when they have afternoon shade.

Water Traminette grapes with 1 inch of water per week during the spring and summer, when the plants are actively growing. Don't let the soil become waterlogged. Regular water is especially important while the grapevines are establishing their root systems.

Tie the Traminette grapevines to a support structure such as a trellis with flexible ties. This keeps the grapes off the ground and also makes them easier to harvest.

Harvest Traminette grapes in late September to early October. Taste the grapes to ensure they are fully ripe, as the ripening process stops as soon you harvest the grapes.