At J Vineyards & Winery, we try to find an arrangement of vine leaves on the trellis that balances the many factors that influence fruit quality. These factors include the number offshoots per vine and the way they are placed on the trellis guide wires, the number of leaves per shoot and their orientation to the sun, the number of grape clusters per shoot and their shading within the canopy as well as many other factors.
Vertical Shoot Positioning (VSP)
Our most widely-used trellising system. Designed to encourage shoots to grow upwards across guide wires. VSP became the standard for most California vineyards by the late 1990's. It provides good sun exposure and air flow, which discourages rot.
Lyre, or U-Shaped Trellis
Balances the canopy with vigorous root systems. This U-shaped frame strung with catch wires opens the canopy, supports shoot growth and provides even sun exposure to achieve optimum ripeness.
One of the most popular ways of training grape vines. The cordon is normally horizontal and can be bi-lateral or unilateral, with shoots emerging from the arm and trained vertically along additional wires. Typically spur pruned.
An example of vertical shoot positioning in Nicole's Vineyard.
Vertical shoot positioning in Cooper Vineyard.