Extend your growing season! Plant your garden an extra ten days earlier, or grow lettuce and greens into the late fall and early winter. By warming the soil in the spring, garden tunnels help plants mature up to 2 weeks earlier than normal. The extra heat can increase yields, and tunnels protect crops from garden pests. At the end of the season, tunnels protect plants from frost and wind damage, so you can harvest later. To create a garden tunnel, simply place support wires every 5' and stretch covering over supports. Place soil along the edges of the cover to secure it to the ground. Replacement cover for items 70086 and 70087. Rolls measure 100' long. Covering is punched with 3/8" holes for ventilation.