- Kny, L. (9)
- Shenandoah Nurseries (9)
- Spiegel, Judith (9)
- C. W. Dorr & Co. (8)
- Dewey, D.M. (8)
- Farmer Seed & Nursery Co. (8)
- Griswold, Robert S., Seed & Floral (8)
- Lou S. Darling Seed Company (8)
- Redouté, Pierre Joseph (8)
- Trew, Christoph Jakob (8)
- Cole's Seed Store (7)
- Fairbury Nurseries (7)
- Loebs, J. L., Seed Co. (7)
- McFarland, Terry (7)
- S.L. Fuller & Co (7)
- Archias' Seed Store Corp. (6)
- Brockman, Wendy (6)
- Evergreen Nursery Company, Inc. (6)
- Greening Nursery Company (6)
- Jung, J. W., Seed Co. (6)