- Gerard, John (165)
- Williams, Agnes (163)
- Otto, Duane Dean (140)
- University of Minnesota Landscape Arboretum (140)
- Dodoens, Rembert (121)
- Roberts, Emma (103)
- Turner, William (74)
- Fuchs, Leonhart (64)
- Mattioli, Pietro Andrea (55)
- White, Miss Emma V. (45)
- Oscar H. Will & Co. (42)
- Field's, Henry, Seed & Nursery Co. (41)
- Joseph Breck & Sons (39)
- Lippincott, Miss C.H. (39)
- Stark Bro's Nurseries (38)
- L.L.May & Co. (34)
- Northrup King & Co. (31)
- Peter, A. (27)
- Everitt, J. A., Seedsman Inc. (21)
- Will, Oscar H., & Co (21)
