What is the purpose of a trellis system in a greenhouse?

A trellis system in a greenhouse serves primarily to support climbing plants, which can significantly enhance space efficiency. Climbers, such as peas, tomatoes, and cucumbers, benefit from vertical growth, allowing them to utilize the available vertical space rather than spreading out across the ground. This not only maximizes the use of limited space within the greenhouse but also facilitates better air circulation and light penetration to the plants, which can contribute to healthier growth and yield.

Additionally, by training plants to grow upwards on a trellis, they can be managed more easily, making tasks like harvesting simpler and reducing the risk of disease that can occur when plants are crowded together on the ground. Overall, the support a trellis provides allows for optimized growth patterns and enhanced productivity in greenhouse environments.