| Company |
| J & C Dahlias |
| J & J Aquafarms |
| J & J Cactus and Succulents |
| J & J Tranzplant Aquatic Nursery, LLC. |
| J & K Orchids |
| J & L Orchids |
| J & P Orchids |
| J & V Craig Iris |
| J Lynn Nursery |
| J Parker Dutch Bulbs Ltd. |
| J. N. Hancock & Co. |
| J. R. Johnson Supply |
| J. Verkade Nursery |
| J.L. Hudson, Seedsman |
| J&L Gardens |
| Jack's Classic |
| Jackson & Perkins |
| Jackson Daylilies |
| Jackson Nurseries UK Ltd |
| Jackson's Daffodils |
| Jacques Amand (US & UK) |
| Jade Dragon Hostas |
| Jade Mountain Bamboo LLC |
| Jamali Garden Supplies |
| James F. McCann Citrus Tree Nursery |
| James McIntyre & Sons |
| Jammin's Daylily Garden |
| Jammy's Gems LLP |
| Jan's Country Garden |
| Janco Greenhouses |
| Jane Lew Nursery |
| Janes African Violets |
| Janis Ruksans Bulb Nursery |
| Japan Nursery FL, Inc. |
| Japan Woodworker |
| Japanese Garden Journal |
| Japanese Maple Secrets eBook |
| Japanese Maples and Evergreens |
| Japanese-Maple.com |
| JapanGarden.co.uk |
| Japonica Gardens |
| Jardicentro |
| Jardin des Nuances |
| Jardin Lac Brome |
| Jay's Merchandise |
| Jaz Sprays |
| JB's Plants @ JBsBirdsandMore.com |
| JD Andersen Nursery |
| JD's Daylilies |
| JD2 Ranch, Inc. |
| Jebadiah Fisher Garden Seed, LLC |
| Jedidiah's Wildflowers |
| Jeepers Creepers USA |
| Jeff & Jackie's Daylilies |
| Jeffsflasks |
| Jekka's Herb Farm |
| Jelitto Seeds |
| JellyRoot |
| JEM Orchids |
| Jené's Tropicals |
| Jenkins Creek Farms |
| Jenks Farmer (Lushlife Nurseries) |
| Jenna Bird |
| Jericho Gardens |
| Jerith Manufacturing Company, Inc. |
| Jernigan's Gardens |
| Jerry Appleseed Nursery |
| Jerry Baker, America's Master Gardener |
| Jerry's Jungle, LLC |
| Jersey Plants Direct |
| Jewell Cedar Garden Shed |
| Jewell Orchids |
| Jiles Bros. Nursery |
| Jim Duggan Flower Nursery |
| Jim Hunters' Epi Universe |
| Jim Little Nursery & Farms |
| Jim's Hostas |
| Jim's Orchid Supplies |
| Jimmy's Chiles |
| jiovi® |
| JJA Seeds |
| jmbamboo |
| JMG Seeds, Yuriko Hida |
| Joe Pye Weed's Garden |
| Joe's Trees |
| JoeBonsai |
| Johann's Garden |
| John & Bob's Soil Optimizer |
| John & Janet Benz Daylilies |
| John Bowers Daylilies |
| John Chambers Wild Flower Seeds |
| John Gordon Nursery |
| John Scheepers Kitchen Garden Seeds |
| John Scheepers, Inc. |
| John's Miniature Roses |
| John's Pond Plants |
| Johnny Becnel Show Roses |
| Johnny's Selected Seeds |
| Johnson Bamboo |
| Johnson Daylily Garden |
| Johnson Gardens Tropical Plants |
| Johnson Nursery |
| Johnsons Seeds |
| Johnsons Way LLC |
| Johnston Seed Company |
| Joiner Gardens |
| Jon's Heirloom Plants |
| Jon's Nursery of Somis |
| Jones Fish and Lake Management |
| Joni's Dance-in-the-Wind Iris Gardens |
| Jonna Sudenius |
| Jonsteen Company |
| Jope's Bonsai Studio |
| Jordan Seeds, Inc |
| Jordan's Daylilies |
| JoS Violets |
| Joseph's Nursery |
| Josh's Frogs |
| Joshua's Native Plants |
| Joubert, Ted |
| Joy Plants |
| Joyful Butterfly |
| Joyful Irises |
| JR Nursery and Orchids |
| JS Dahlias |
| JT Dahlias (John Thiermann) |
| JT Peppers |
| JT's Daylilies |
| JTM Gardens |
| Juanitos Peppers |
| Judy Duthu's Daylilies |
| Judy's Snowdrops |
| Juliana Greenhouses (GardenStyles.com) |
| Julie's Orchids |
| Jung Seed |
| Jungle Gardens |
| Jungle Jack's Plumerias |
| Jungle Music Palms & Cycads |
| Jungle Paradise |
| Jungle Seeds & Gardens |
| Junglecactus.com |
| Junker's Nursery, Ltd. (P.M.A. Plant Specialities) |
| Juno Beach Orchids |
| Jurasek alpines |
| Jurassic Landscape Nursery |
| Jurassic Plants Nursery |
| Just Fruits and Exotics |
| Just Fuchsia (Ladybrae Farm Nursery) |
| Just Jill's Craft Accessories |
| Just Liners Plus |
| Just N' Tyme Greenhouse and Hydroponics Supplies |
| Just Plumerias |
| Just Sweet Peas Ltd |
| Justin's Pumpkin's Farm |
| justseed |
| JWDobbs.com (Crossville Farm Market) |
