| 0 | 53132 | 12E0100017 | 'Panenka' | Rhododendron decorum Franch. | Czechoslovakia | | 6 | 12E0100017 ** |
| 1 | 53133 | 12E0100018 | 'Petr' | Rhododendron hybr. | Czechoslovakia | | 6 | 12E0100018 ** |
| 2 | 53179 | 12E0100064 | 'Lavender Girl' | Rhododendron fortunei Lindl. subsp. fortunei | United Kingdom | | 6 | 12E0100064 ** |
| 3 | 53298 | 12E0100183 | 'Bambola' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 6 | 12E0100183 ** |
| 4 | 53314 | 12E0100199 | 'Breslau' | Rhododendron wardii W. W. Sm. | Germany | | 6 | 12E0100199 ** |
| 5 | 53315 | 12E0100200 | 'Lamentosa' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 6 | 12E0100200 ** |
| 6 | 53326 | 12E0100211 | 'Oudijk's Sensation' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 6 | 12E0100211 ** |
| 7 | 53377 | 12E0100262 | 'Obergaertner Robenek' | Rhododendron hybr. | Germany | | 6 | 12E0100262 ** |
| 8 | 53392 | 12E0100277 | 'Stadt Essen' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 6 | 12E0100277 ** |
| 9 | 53422 | 12E0100307 | 'Scintillation' | Rhododendron fortunei Lindl. subsp. fortunei | United States | | 6 | 12E0100307 ** |
| 10 | 53457 | 12E0100342 | 'Erato' | Rhododendron hybr. | Germany | | 6 | 12E0100342 ** |
| 11 | 53463 | 12E0100348 | 'Polarnacht' | Rhododendron hybr. | Germany | | 6 | 12E0100348 ** |
| 12 | 53468 | 12E0100353 | 'Schneeauge' | Rhododendron hybr. | Germany | | 6 | 12E0100353 ** |
| 13 | 53471 | 12E0100356 | 'Nicoletta' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 6 | 12E0100356 ** |
| 14 | 53547 | 12E0100432 | 'Lavendelzauber' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 6 | 12E0100432 ** |
| 15 | 53613 | 12E0100498 | 'Blaauw's Pink' | Rhododendron hybr. | unknown | | 6 | 12E0100498 ** |
| 16 | 53618 | 12E0100503 | 'Campfire' | Rhododendron hybr. | unknown | | 6 | 12E0100503 ** |
| 17 | 53620 | 12E0100505 | 'Canzonetta' | Rhododendron hybr. | unknown | | 6 | 12E0100505 ** |
| 18 | 53636 | 12E0100521 | 'Rauschenstein' | Rhododendron kiusianum Makino | *German Democratic Republic | | 6 | 12E0100521 ** |
| 19 | 53655 | 12E0100541 | 'Haruko' | Rhododendron hybr. | unknown | | 6 | 12E0100541 ** |
| 20 | 53668 | 12E0100554 | 'Baroness Henry Schroeder' | Rhododendron hybr. | Germany | | 6 | 12E0100554 ** |
| 21 | 53681 | 12E0100567 | 'Signalgluehen' | Rhododendron hybr. | Germany | | 6 | 12E0100567 ** |
| 22 | 53683 | 12E0100602 | 'Boubin' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 6 | 12E0100602 ** |
| 23 | 53688 | 12E0100607 | 'Orlice' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 6 | 12E0100607 ** |
| 24 | 53689 | 12E0100608 | 'Oslava' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 6 | 12E0100608 ** |
| 25 | 53710 | 12E0100814 | 'Sapporo' | Rhododendron hybr. | Germany | | 6 | 12E0100814 ** |
| 26 | 53738 | 12E0100842 | 'Lenora' | Rhododendron ferrugineum L. | Czech Republic | | 6 | 12E0100842 ** |
| 27 | 53748 | 12E0100852 | 'Bouzov' | Rhododendron decorum Franch. | Czech Republic | | 6 | 12E0100852 ** |
| 28 | 53749 | 12E0100853 | 'Pruhonice' | Rhododendron obtusum (Lindl.) Planch. | Czech Republic | | 6 | 12E0100853 ** |
| 29 | 53752 | 12E0100856 | 'Krivoklat' | Rhododendron hybr. | Czech Republic | | 6 | 12E0100856 ** |
| 30 | 53755 | 12E0100859 | 'Kokorin' | Rhododendron hybr. | Czech Republic | | 6 | 12E0100859 ** |
| 31 | 65600 | 12E0100882 | 'Klenova' | Rhododendron hybr. | Czech Republic | | 6 | 12E0100882 ** |