| whis.org | Horticultural Inspection Society - Western Chapter |
| lgda.com | Lawn & Garden Dealers Association |
| isa-uki.org | International Society of Arboriculture UK&I Chapter |
| herbworld.com | Herb World |
| fpfc.org | Fresh Produce and Floral Council |
| watermelon.org | National Watermelon Organization |
| networkats.com | Maryland Olive Growers Association |
| usda.gov | USDA - Fruit and Vegetable Market Programs |
| growit.com | Growit.com - Wholesale Nurseries,landscape Plant Buyer's Guide, Gardening A |
| uffva.org | United Fresh Fruit and Vegetable Association |
| tablegrape.com | www.tablegrape.com/ |
United States , Washington , Seattle