National Greenhouse Co.®, a division of Nexus Corporation.®, is a proven leader in the design and manufacture of greenhouse kits and other enclosed environments-not just for the home, but also for schools, universities, and businesses across the U.S. and Canada. With over 80 years of experience, Nexus Corporation's greenhouses are designed and manufactured to stand the test of time. National Greenhouse Co. has earned a reputation as the leading supplier of quality home greenhouses and hobby greenhouse kits in the United States and Canada.