A trellising system is the physical framework used to support grapevine growth, position shoots, and organize the fruiting zone within a vineyard. Its structure influences sunlight exposure, air movement, canopy density, labor efficiency, mechanization, and the vine’s balance between leaf growth and fruit production.
Common systems include vertical shoot positioning, Geneva double curtain, lyre, pergola, and head-trained bush vines, each suited to different climates, varieties, slopes, and production goals. Trellising affects wine quality by shaping ripening, disease pressure, yield control, phenolic development, and the consistency of fruit harvested from the vineyard.