Trellis netting is a type of plant support made of durable and lightweight mesh material. It is used to support climbing plants such as vines, tomatoes, cucumbers, and other climbing vegetables. The netting is typically attached to a frame, stakes or walls and provides a structure for the plants to climb and grow on. It helps the plants to stay upright, preventing damage to stems and fruits, and improving yields. Trellis netting is also used to improve air circulation around the plants and to allow more sunlight to reach the leaves. It is a popular and practical way of maximizing growing space and improving plant growth in small gardens, greenhouses, and outdoor growing areas.