| Company |
| R.F. Orchids |
| R.H. Shumway Seeds |
| R.V. Roger Ltd. |
| Rabbit Ridge Berry Farm |
| Raccoon Creek Farm |
| Rachel's Robin Backyard Birding (GregRobert Enterprises, LLC) |
| Rachel's Tomato Seed Supply (Rachel's Pepper Seed Supply) |
| Raemelton Farm |
| Rain Barrel Depot |
| Rain Chains Direct |
| Rain Forest Nurseries Inc. |
| Rainbow Acres |
| Rainbow Acres Mount Home Daylily Farm |
| Rainbow Caladium Bulb Company |
| Rainbow Daylily Garden |
| Rainbow Eucalyptus (Aroidia Research) |
| Rainbow Gardens Bookshop |
| Rainbow Iris Farms |
| Rainbow Mealworms |
| Rainbow Organic Farms |
| Rainbow Seeds |
| Rainforest Flora, Inc. |
| Rainforest Mushroom Spawn |
| Rainforest Seed Company |
| Rainier Seeds Inc. |
| Raintree Nursery |
| Rancho La Orquidea |
| Randall Burkey Company |
| Randolph's Greenhouses |
| Randy's Perennials & Water Gardens |
| Rara växter |
| Rare Plant Research |
| Rare Roots |
| Rare Succulents |
| RareBird Nursery |
| Rarefind Nursery (Rare Find Nursery) |
| rarepalmseeds.com |
| Rarexoticseeds |
| Ratcliffe Orchids, LLC |
| Rawlinson Garden Seed |
| Razorback Koi |
| Reads Nursery |
| Real Palm Trees (RealPalmTrees.com) |
| Reath's Nursery |
| Rebecca's Bird Gardens |
| Reblooming Beauties |
| Recluse Gardens |
| Red Hill General Store |
| Red Rock Lavender |
| Red Rock Nursery |
| Red Worm Composting (redwormcomposting.com) |
| Redbud Lane Iris Garden |
| Redemption Seeds |
| Redfearn's Nursery |
| Redland Nursery |
| Redrock Farm |
| redsavina.com |
| Redwood City Seed |
| Redwood Garden Bridges |
| Redwood Seeds |
| RedWorms for a Green Earth |
| Reeseville Ridge Nursery |
| Refining Fire Chiles |
| Regal Daylilies |
| Regan Nursery |
| Reich Poultry Farms, Inc |
| Reimer Seeds |
| Renaissance Acres Organic Herb Farm |
| Renaissance Conservatories |
| Renaissance Garden |
| Renee's Garden Seeds |
| Repel Products (Deer Guard) |
| RePotme.com |
| Resilient Seeds |
| Restoration Rose Farm |
| Rhocurt Distributors |
| Rhododendron Species Foundation |
| Rhododendrons Direct |
| RhodoDirect.co.nz |
| Rhora's Nut Farm & Nursery |
| Ric-A-Tee Daylily Gardens |
| Rice Daylilies |
| Rich Farm Garden Supply |
| Richard Woodie Tree Farms |
| Richbourg Nursery, Inc. (camelliaplant.com) |
| Richstine's Lawn Ornaments |
| Richter's Herb Specialists |
| Ridgway Hatchery |
| rifnik |
| Rio Grande Nursery |
| Rio Rancho Nursery |
| Rion Innovative Plastic Solutions |
| Ripley County Farms |
| Rippingale Nursery |
| Rising Mist Organic Farm |
| Rita van der Zalm |
| Rittenhouse |
| Rivenrock Gardens (RivenRock.com) |
| River Bend Gardens (sandyholmes.com) |
| River Bluff Gardens, Ltd. |
| River Garden Nurseries |
| River Ridge Farms Inc. |
| River Road Farms (espaliertrees.com) |
| River Rock Nursery |
| River Valley Orchids |
| River View Herbs (Maitland Greenhouses) |
| River's Dahlia |
| River's Source Botanicals |
| Riverbend Gardens |
| Riverbend Gardens & Nursery |
| Riverdale Iris Gardens |
| Riveredge Farms |
| Rivergate Gardens |
| Riverside Aquatics |
| Riverside Fuchsias |
| Riverside Gardens |
| Riverside Native Trees and Nursery, LLC |
| Road's End Farm, LLC |
| Rob's Rare and Giant Seeds (robsrareandgiantseeds.com) |
| Robert Bedard Horticulture |
| Robert Marvel Plastic Mulch |
| Robert Scott Cacti |
| Robert's Blooms |
| Roberta's Unique Gardens (formerly Roberta's Inc.) |
| RobinSeeds |
| RobinSeedsRebloomed |
| RoboReel by GreatStuff Inc. |
| Robrick Nursery |
| Rochester Hatchery |
| Rock Bridge Trees |
| Rock Spray Nursery |
| Rocket Sprayer (Taraco Enterprises) |
| Rocky Knoll Farm |
| Rocky Mountain Pond (RockyMountainPond.com) |
| Rocky Mountain Rare Plants |
| Rockytop Gardens |
| Rodale Press |
| Rodex Sales and Service LLC |
| Roger Anderson's Callie's Beaux Jardins (also dba Intersectional Peonies) |
| Roger Parsons Sweet Peas |
| Roger's Fernleaf Peony Farm |
| Rogers Custom Greenhouse Mfg. |
| Rogue Valley Roses |
| Rohde's Nursery & Nature Store |
| Rohrer Seeds |
| Roji Pottery Studio |
| Roll 'n Grow (RollnGrow.com) |
| Roll Out Flowers (Garden Innovations, LLC) |
| Roller Feeder |
| Rolling Green Nursery |
| Rolling Prairies Acres |
| Rolling Thunder Nursery |
| RollingAcres Native Landscape Nursery LLC |
| Rollingwood Gardens (Daylilies by Jeff & Elizabeth Salter) |
| Romancing the Woods, Inc. |
| Romence Gardens & Greenhouses |
| Ronda's Flowers |
| Ronniger Potato Farm LLC |
| Root Naturally |
| Rootblast |
| Rootfeed.com |
| Rootrainers |
| Roots and Rhizomes |
| Roots, Inc. (Novozymes Biologicals, Inc.) |
| Rootstown Organic Farm |
| Roraima Nursery |
| Rose Acres |
| Rose City Wholesale |
| Rose Fire, Ltd. |
| Rose Franklin's Perennials & Herbs |
| Rose Meadow Nursery |
| Rose Story Farm |
| Rose Tweed Nursery (C. Gregory Roses) |
| Rosebuddies (Bill LeGrice Roses) |
| RoseCare.com (Agri-Turf Supplies, Inc.) |
| Roseland Nursery |
| Rosemania |
| Rosemary House and Gardens, Inc |
| Rosengärtnerei Kalbus |
| Rosepond Aquatics |
| Roseraies Guillot |
| Roses inc. Tulsa |
| Roses of Yesterday and Today |
| Roses Online |
| Roses Unlimited |
| Ross Roses |
| Rosy Dawn Gardens |
| Rotherview Nursery (Coghurst Camellias) |
| RotoComposters.com |
| Rott'n Apple Worm Farm |
| Rougham Hall Nurseries |
| Round Butte Seed Growers |
| Round Mountain Gardens |
| Roundstone Native Seed |
| Row 7 Seed Company |
| Roxanne's Nursery (Roxanne Duncan) |
| Roxbury Farm & Garden Center |
| Royal Anne Organics Garlic Seed |
| Royal Colors (RoyalColors.com) |
| Royal Dutch |
| Royal Orchid Club |
| Roycroft Daylily Nursery |
| Royston Petrie Seeds Pty Ltd. |
| Rozanski Orchid House |
| RSI Growers |
| Ruben in Orchids |
| Ruby's Garden Secrets |
| Ruff's Christmas Trees |
| Rugged Country Plants |
| Rühlemann's Kräuter & Duftpflanzen |
| Ruibal's Topiary Systems & Ironworks |
| Rumwood Nurseries |
| Rupp Seeds |
| Rural Roots Gardens |
| Rush Industries Inc. |
| Russ & Nancy's Tall Bearded Iris Collection |
| Russell's Bromeliads |
| Russian River Rose Company |
| Russo Power Equipment |
| Rusty Mangrum Nursery |
| Ruth's Garden Shop |
| Rutherford Gardens (Point Beacon Internet Sales) |
| Rux Gardens |
