| No. | Originator/Registrant | Cultivars | State/Country |
|
1
| A and D Nursery | 1 | Washington |
|
2
| Abe, Hiroshi | 1 | Japan |
|
3
| Abrams, Deb | 1 | New York |
|
4
| Adams, Joy | 4 | Iowa |
|
5
| Addison, Carlon | 1 | Ohio |
|
6
| Aden, Paul | 222 | New York |
|
7
| Ahlburg, Marlene | 8 | Germany |
|
8
| Ahrens, Thomas | 1 | Germany |
|
9
| Aiello, D. | 1 | Rhode Island |
|
10
| Alamillo, Andres | 1 | California |
|
11
| Amberg, Mary | 1 | Massachusetts |
|
12
| Anderson, Chuck | 3 | New Hampshire |
|
13
| Anderson, Jim | 59 | Georgia |
|
14
| Anderson, K. | 1 | Indiana |
|
15
| Anderson, Kenneth | 25 | Minnesota |
|
16
| Anderson, Luke | 1 | Minnesota |
|
17
| Anderson, Marlys | 5 | Iowa |
|
18
| Anderson, Sue | 3 | New Hampshire |
|
19
| Ankney, Barry | 4 | Illinois |
|
20
| Applegate, Charles | 2 | Ohio |
|
21
| Archibald, Jim | 1 | England |
|
22
| Arends, George | 8 | Germany |
|
23
| Arett, Anne | 15 | Minnesota |
|
24
| Armstrong, Maxine | 9 | Nebraska |
|
25
| Arnold, Beth | 4 | Illinois |
|
26
| Arrowhead Nursery | 1 | Michigan |
|
27
| Artley, A. | 1 | North Carolina |
|
28
| Asami, Hisatoyo | 2 | Japan |
|
29
| Asch, Stuart | 72 | Michigan |
|
30
| Aukema, Bate | 15 | Netherlands |
|
31
| Avent, Tony | 112 | North Carolina |
|
32
| Axmear, Bob | 15 | Iowa |
|
33
| The American Hosta Society | 102 | Unknown |
|
34
| Vilmorin et Andrieux | 2 | Canada |
|