- Gerard, John (165)
- Williams, Agnes (163)
- Otto, Duane Dean (147)
- University of Minnesota Landscape Arboretum (147)
- Dodoens, Rembert (121)
- D. M. Ferry & Co. (109)
- Roberts, Emma (103)
- Iwasaki, Kan'en, 1786-1842 (95)
- 岩崎灌園, 1786-1842 (95)
- Turner, William (74)
- Fuchs, Leonhart (64)
- Mattioli, Pietro Andrea (55)
- Iowa Seed Co. (54)
- Currie Brothers Co. (46)
- 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)
