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 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 covering is available in 100' rolls, see item 70147. Covering is punched with 3/8" holes for ventilation. 50' kit includes 12 - 54-inch 10 gauge support wires.