National:

•  American Association of Botanical Gardens and Arboreta, www.aabga.org

•  American Horticultural Society, www.ahs.org

•  American Landscape Contractors Association, www.alca.org

•  American Nurserymen and Landscape Association, www.anla.org

•  American Society for Horticulture Science, www.ashs.org

•  American Society of Golf Course Architects, www.golfdesign.org

•  AMERICAN SOCIETY OF IRRIGATION CONSULTANTS: http://www.asic.org/

•  American Society of Landscape Architects: http://www.asla.org

•  Association of Landscape Designers, www.apld.org

•  Association of Professional Landscape Designers, www.apld.com

•  Interlocking Concrete Pavement Institute, www.icpi.org

•  Irrigation and Green Industry Network, www.igin.com

•  Irrigation Association, www.irrigation.org

•  National Arborist Association, www.natlarb.com

•  North American Weed Management Association: http://www.nawma.org/

•  Professional Grounds Management Society (PGMS): http://www.pgms.org/

•  Professional Landcare Network: http://www.landcarenetwork.org

•  Sports Turf Managers Association: http://www.sportsturfmanager.org/

•  Tree Care Industry Association (TCIA): http://www.treecareindustry.org/

•  Turfgrass Producers International: http://www.turfgrasssod.org/

Regional

•  Intermountain Turf Producers www.turfgrowers.org

•  Landscape Contractors Association MD-DC-VA: http://www.lcamddcva.org/

•  New England Nursery Association- http://www.nensyassn.org/

•  New England Regional Turfgrass Foundation: http://www.nertf.org/

•  New England Sod Producers Association www.nesod.com

•  Rocky Mountain Regional Turfgrass Association www.rmrta.org

•  Rocky Mountain Sod Growers Association www.rockymountainsodgrowers.com

•  Southern Nursery Association: http://www.sna.org/

•  Southwest Turfgrass Association turf.nmsu.edu

•  Western Nursery and Landscape Association: http://www.wnla.org/

Alabama

•  Alabama Nurserymen's Association - http://www.alna.org/

•  Alabama Turfgrass Association www.alaturfgrass.org

Arizona

•  Arizona Landscape Contractors Association (AZLCA): http://www.azlca.com/

•  Arizona Nursery Association (ANA): http://www.azna.org/

•  Arkansas Green Industry Association : http://www.argia.org/

California

•  California Association of Nurseries & Garden Centers- http://www.cangc.org/

•  California Interior Plantscape Association (CIPA): http://www.cipaweb.org

•  California Landscape Contractors Association: http://www.clca.org/

•  Southern California Turfgrass Council www.turfcouncil.org/

•  Southern California Turfgrass Foundation turfgrassfoundation.org/

Colorado

•  Associated Landscape Contractors of Colorado, ALCC: http://www.ahs.org/

•  Colorado Chapter of American Society of Landscape Architects, CCASLA: http://www.alcc.com/

•  Colorado Greenhouse Growers Association, CGGA: http://www.coloradogreenhouses.org/

•  Colorado Sports Turf Managers Association www.cstma.org

•  International Society of Arboriculture, Rocky Mtn. Chapter, ISA/RMC: www.isarmc.org

Connecticut

•  Connecticut Nursery & Landscape Association- http://www.flowersplantsinct.com/cnla/cnlaindex.htm

Florida

•  Florida Nursery, Growers and Landscape Association (FNGLA): http://www.fnga.org/

•  Florida Sod Growers Cooperative www.floridasodgrowers.com

•  Florida Turfgrass Association www.ftga.org/

Georgia

•  Georgia Green Industry Association (GGIA) : http://www.ggia.org/

•  Georgia Turfgrass Foundation Trust www.turfgrass.org/

Hawaii

•  Big Island Association of Nurserymen: http://hawaiiplants.com/

•  Hawaii Export Nursery Association- http://www.hena.org/

Idaho

•  Idaho Nursery & Landscape Association: http://www.inlagrow.org/

Illinois

•  American Society of Landscape Architects–Illinois Chapter: www.il-asla.org

•  Association of Professional Landscape Designers: www.apld.org

•  Illinois Arborist Association: www.illinoisarborist.org

•  Illinois Christmas Tree Association: www.ilchristmastrees.com

•  Illinois Landscape Contractors Association: www.ilca.net

•  Illinois Nurserymen's Association: http://www.ina-online.org/

•  Illinois Park and Recreation Association: www.il-ipra.org

•  Illinois Turfgrass Foundation: www.illinoisturfgrassfoundation.org

•  Midwest Association of Golf Course Superintendents: www.magcs.org

•  Ornamental Growers Association of Northern Illinois : www.ogaoni.com

•  Sod Growers Association of Mid-America: www.turfgrassod.org

•  Sports Turf Managers Association: www.sportsturfmanager.com

Indiana

•  Indiana Nursery & Landscape Association: http://www.inla1.org/

Iowa

•  Iowa Nursery & Landscape Association, Inc.: http://www.iowanla.org/

•  Iowa Turf Institute www.iowaturfgrass.org

Kansas

•  Kansas Turfgrass Foundation www.oznet.ksu.edu/dp_hfrr/turf/ktf.htm

Kentucky

•  Kentucky Nursery and Landscape Association: http://www.knla.org

Louisiana

•  Louisiana Arborist Association (LAA): http://www.louisianaarborist.com/

•  Louisiana Nursery & Landscape Association - http://www.i-55.com/lan/

Maine

•  Maine Nursery & Landscape Association- http://www.melna.org/

Maryland

•  Maryland Green Industry Council: http://www.mdgga.org/magic.html

•  Maryland Greenhouse Growers' Association (MGGA): http://www.mdgga.org/

•  Maryland Nursery and Landscape Association: http://www.mnlaonline.org/

•  Maryland Turfgrass Association www.marylandturfgrass.org

Massachusetts

•  Massachusetts Nursery & Landscape Association - http://www.mnla.com/

Michigan

•  Michigan Green Industry Association (MGIA) : http://www.landscape.org/

•  Michigan Nursery and Landscape Association (MNLA): http://www.mnla.org/

•  Michigan Sod Growers Association www.michigansod.org

•  Michigan Turfgrass Foundation www.michiganturf.org/

Minnesota

•  Minnesota Nursery & Landscape Association- http://www.mnlandscape.org/

•  Minnesota Turfgrass Association www.mntuf.org

Missouri

•  Missouri Nursery & Landscape Association- http://www.mlna.org/

Mississippi

•  Mississippi Nursery & Landscape Association - http://www.msnla.org/

•  Mississippi Turfgrass Association www.msstate.edu/org/mta

Montana

•  Montana Nursery & Landscape Association- http://www.plantingmontana.com/

Nebraska

•  Nebraska Nursery & Landscape Association - http://www.nnla.org/

•  Nebraska Turfgrass Foundation hort.unl.edu/ntf

Nevada

•  Nevada Landscape Association: http://www.nevadanla.com/

New Hampshire

•  New Hampshire Plant Growers Association: http://www.nhplantgrowers.org/

New Jersey

•  New Jersey Landscape Contractors Association: http://www.njlca.org/

•  New Jersey Nursery & Landscape Association- http://www.gardennj.net/

•  New Jersey Turfgrass Foundation www.njturfgrass.org/

New York

•  New York State Turfgrass Association www.nysta.org/

•  New York State Turf & Landscape Association: http://www.nystla.com/

•  Western New York State Nursery & Landscape Association: http://www.wnysnla.org/

North Carolina

•  Landscape and Grounds Management Association of North Carolina, Inc. : http://www.nclandscape.org/

•  North Carolina Association of Nurserymen- http://www.ncan.com/

•  North Carolina Commercial Flower Growers' Association: http://www.nccfga.org/

•  North Carolina Green Industry Council: http://www.ncgreenindustrycouncil.org/

•  North Carolina Sod Producers Association www.ncsod.org

•  Turfgrass Council of North Carolina www.ncturfgrass.org

North Dakota

•  North Dakota Nursery & Greenhouse Association: http://www.ndnga.com/

Ohio

•  Ohio Nursery and Landscape Association (ONLA): http://www.onla.org/

•  Ohio Sports Turf Managers Association: http://www.ostma.org/

•  Ohio Turfgrass Foundation: http://www.ohioturfgrass.org/

Oklahoma

•  Oklahoma Nursery & Landscape Association - http://www.oknurserymen.org/

Oregon

•  Oregon Association's of Nurseries - http://www.oan.org/

Pennsylvania

•  Lawn Care Association of Pennsylvania : http://www.lawncareofpa.org/

•  Pennsylvania Landscape and Nursery Association: http://www.plna.com

•  Pennsylvania Turf Council www.paturf.org

Rhode Island

•  Rhode Island Nursery & Landscape Association- http://www.rinla.com/

South Carolina

•  South Caroline Nursery & Landscape Association- http://www.scnla.com/

•  South Carolina Sod Producers Association www.scsod.com

•  South Dakota Turf Foundation hflp.sdstate.edu/turf/

Tennessee

•  Tennessee Turfgrass Association www.golfhousetennessee.com

•  Tennessee Nursery & Landscape Association- http://www.tnla.com/

Texas

•  Texas Nursery and Landscape Association (TNLA): http://txnla.org/

•  Texas Turfgrass Association www.texasturf.com/index.htm

•  Turfgrass Producers of Texas www.txsod.com

Utah

•  Utah Nursery and Landscape Association: http://www.utahgreen.org

Vermont

•  Vermont Association of Professional Horticulturists: http://www.vaph.org/

Virginia

•  Virginia Nursery & Landscape Association - http://www.vnla.org/

•  Virginia Green Industry Council Inc: http://www.virginiagreen.org/

•  Virginia Turf Council www.thevtc.org

Washington

•  Washington Association of Landscape Professionals: http://www.walp.org/

•  Washington State Nursery & Landscape Association: http://www.wsnla.org/

West Virginia

•  West Virginia Nursery & Landscape Association - http://www.wvnla.org/

Wisconsin

•  Wisconsin Green Industry Federation: http://www.wislf.org/

Wyoming

•  Wyoming Groundkeepers and Growers Association www.wgga-org