| 0 | 53174 | 12E0100059 | 'Kokardia' | Rhododendron hybr. | Germany | | 7 | 12E0100059 ** |
| 1 | 53300 | 12E0100185 | 'Hachmann's Belona' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 7 | 12E0100185 ** |
| 2 | 53312 | 12E0100197 | 'Kalinka' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 7 | 12E0100197 ** |
| 3 | 53331 | 12E0100216 | 'Cannon's Double' | Rhododendron hybr. | United States | | 7 | 12E0100216 ** |
| 4 | 53403 | 12E0100288 | 'Pink Delight' | Rhododendron hybr. | United Kingdom | | 7 | 12E0100288 ** |
| 5 | 53411 | 12E0100296 | 'Blue Bell' | Rhododendron hybr. | United Kingdom | | 7 | 12E0100296 ** |
| 6 | 53437 | 12E0100322 | 'Sammetglut' | Rhododendron hybr. | Germany | | 7 | 12E0100322 ** |
| 7 | 53474 | 12E0100359 | 'Ricarda' | Rhododendron hybr. | Germany | | 7 | 12E0100359 ** |
| 8 | 53521 | 12E0100406 | 'Falling Snow' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | United States | | 7 | 12E0100406 ** |
| 9 | 53552 | 12E0100437 | 'Mrs John Penn' | Rhododendron hybr. | United Kingdom | | 7 | 12E0100437 ** |
| 10 | 53608 | 12E0100493 | 'Allotria' | Rhododendron kaempferi Planch. | Germany | | 7 | 12E0100493 ** |
| 11 | 53609 | 12E0100494 | 'Azurika' | Rhododendron impeditum Balf. f. & W. W. Sm. | unknown | | 7 | 12E0100494 ** |
| 12 | 53610 | 12E0100495 | 'Azurwolke' | Rhododendron hybr. | unknown | | 7 | 12E0100495 ** |
| 13 | 53618 | 12E0100503 | 'Campfire' | Rhododendron hybr. | unknown | | 7 | 12E0100503 ** |
| 14 | 53627 | 12E0100512 | 'Diamant Purpur' | Rhododendron kiusianum Makino | Germany | | 7 | 12E0100512 ** |
| 15 | 53637 | 12E0100522 | 'Schrammstein' | Rhododendron kiusianum Makino | unknown | | 7 | 12E0100522 ** |
| 16 | 53638 | 12E0100523 | 'Wildenstein' | Rhododendron kiusianum Makino | unknown | | 7 | 12E0100523 ** |
| 17 | 53639 | 12E0100524 | 'Hachmann's Estrella' | Rhododendron hybr. | Germany | | 7 | 12E0100524 ** |
| 18 | 53644 | 12E0100530 | 'Florida' | Rhododendron hybr. | unknown | | 7 | 12E0100530 ** |
| 19 | 53645 | 12E0100531 | 'Satschiko' | Rhododendron hybr. | Germany | | 7 | 12E0100531 ** |
| 20 | 53647 | 12E0100533 | 'George Cunningham' | Rhododendron hybr. | unknown | | 7 | 12E0100533 ** |
| 21 | 53665 | 12E0100551 | 'Zofie Podlipska' | Rhododendron yedoense Maxim. var. poukhanense (H. Lév.) Nakai | Czech Republic | | 7 | 12E0100551 ** |
| 22 | 53676 | 12E0100562 | 'Ramapo' | Rhododendron minus Michx. var. minus | unknown | | 7 | 12E0100562 ** |
| 23 | 53684 | 12E0100603 | 'Doubrava' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 7 | 12E0100603 ** |
| 24 | 53686 | 12E0100605 | 'Labe' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 7 | 12E0100605 ** |
| 25 | 53689 | 12E0100608 | 'Oslava' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 7 | 12E0100608 ** |
| 26 | 53707 | 12E0100811 | 'Frank Galsworthy' | Rhododendron ponticum L. | United Kingdom | | 7 | 12E0100811 ** |
| 27 | 53712 | 12E0100816 | 'Madame Albert van Hecke' | Rhododendron kaempferi Planch. | Belgium | | 7 | 12E0100816 ** |
| 28 | 53715 | 12E0100819 | 'Viscy' | Rhododendron hybr. | Germany | | 7 | 12E0100819 ** |
| 29 | 53730 | 12E0100834 | 'Hachmann's Feuerschein' | Rhododendron hybr. | Germany | | 7 | 12E0100834 ** |
| 30 | 53733 | 12E0100837 | 'Charis' | Rhododendron hybr. | Germany | | 7 | 12E0100837 ** |
| 31 | 53735 | 12E0100839 | 'Kuks' | Rhododendron obtusum (Lindl.) Planch. | Czech Republic | | 7 | 12E0100839 ** |
| 32 | 53745 | 12E0100849 | 'Veltrusy' | Rhododendron obtusum (Lindl.) Planch. | Czech Republic | | 7 | 12E0100849 ** |