Greenhouses, cold frames or low tunnels are great options to raise the ambient temperature and allow you to grow in frosty weather, get a jump-start on your seed starting, or shelter delicate plants from the elements. Choose from our selection of greenhouse plastic, or beautiful redwood greenhouse kits. Regulate temperatures in your greenhouse or cold frame with automatic vent openers. 

Greenhouse plastic can also be used to build low tunnels or as a tool for weed control called solarization. Just place the plastic over an area with weeds and the heat of the sun (best results in summer) will kill weeds under the plastic.