If you need additional information about greenhouses, please contact any of the
following organizations:
-
National Greenhouse Manufacturers Association
Industry trade organization for the manufacturers and suppliers of greenhouses and greenhouse components.
www.ngma.com
-
American Hort
Horticulture industry trade association representing breeders, greenhouse and nursery growers, retailers, distributors, interior and exterior landscapers, florists, students, educators, researchers, and manufacturers.
www.americanhort.org