| 0 | 53145 | 12E0100030 | 'Bellini' | Rhododendron wardii W. W. Sm. | Germany | | 2 | 12E0100030 ** |
| 1 | 53146 | 12E0100031 | 'Bernstein' | Rhododendron hybr. | Germany | | 2 | 12E0100031 ** |
| 2 | 53183 | 12E0100068 | 'Marchioness of Landsdowne' | Rhododendron maximum L. | United Kingdom | | 2 | 12E0100068 ** |
| 3 | 53190 | 12E0100075 | 'Ortrud' | Rhododendron catawbiense Michx. | Germany | | 2 | 12E0100075 ** |
| 4 | 53206 | 12E0100091 | 'Amphion' | Rhododendron catawbiense Michx. | United Kingdom | | 2 | 12E0100091 ** |
| 5 | 53252 | 12E0100137 | 'Mount Everest' | Rhododendron hybr. | United Kingdom | | 2 | 12E0100137 ** |
| 6 | 53266 | 12E0100151 | 'Goldfort' | Rhododendron fortunei Lindl. subsp. fortunei | United Kingdom | | 2 | 12E0100151 ** |
| 7 | 53271 | 12E0100156 | 'Harvest Moon' | Rhododendron campylocarpum Hook. f. | Netherlands | | 2 | 12E0100156 ** |
| 8 | 53299 | 12E0100184 | 'Barmstedt' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 2 | 12E0100184 ** |
| 9 | 53314 | 12E0100199 | 'Breslau' | Rhododendron wardii W. W. Sm. | Germany | | 2 | 12E0100199 ** |
| 10 | 53316 | 12E0100201 | 'Leopardii' | Rhododendron arboreum Sm. | United Kingdom | | 2 | 12E0100201 ** |
| 11 | 53317 | 12E0100202 | 'Lissabon' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 2 | 12E0100202 ** |
| 12 | 53360 | 12E0100245 | 'Volker' | Rhododendron hybr. | Germany | | 2 | 12E0100245 ** |
| 13 | 53391 | 12E0100276 | 'Schneebukett' | Rhododendron hybr. | Germany | | 2 | 12E0100276 ** |
| 14 | 53404 | 12E0100289 | 'Papilionaceum' | Rhododendron hybr. | United Kingdom | | 2 | 12E0100289 ** |
| 15 | 53413 | 12E0100298 | 'Cheer' | Rhododendron catawbiense Michx. | United States | | 2 | 12E0100298 ** |
| 16 | 53425 | 12E0100310 | 'Goerlitz' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 2 | 12E0100310 ** |
| 17 | 53448 | 12E0100333 | 'Tibet' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 2 | 12E0100333 ** |
| 18 | 53450 | 12E0100335 | 'Silvia' | Rhododendron hybr. | Germany | | 2 | 12E0100335 ** |
| 19 | 53461 | 12E0100346 | 'Marietta' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 2 | 12E0100346 ** |
| 20 | 53475 | 12E0100360 | 'Malwine' | Rhododendron hybr. | Germany | | 2 | 12E0100360 ** |
| 21 | 53499 | 12E0100384 | 'Arthur Stevens' | Rhododendron hybr. | United Kingdom | | 2 | 12E0100384 ** |
| 22 | 53521 | 12E0100406 | 'Falling Snow' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | United States | | 2 | 12E0100406 ** |
| 23 | 53541 | 12E0100426 | 'Ken Janeck' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | United States | | 2 | 12E0100426 ** |
| 24 | 53542 | 12E0100427 | 'Kings Ride' | Rhododendron hybr. | United Kingdom | | 2 | 12E0100427 ** |
| 25 | 53547 | 12E0100432 | 'Lavendelzauber' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 2 | 12E0100432 ** |
| 26 | 53552 | 12E0100437 | 'Mrs John Penn' | Rhododendron hybr. | United Kingdom | | 2 | 12E0100437 ** |
| 27 | 53556 | 12E0100441 | 'Nofretete' | Rhododendron insigne Hemsl. & E. H. Wilson | United Kingdom | | 2 | 12E0100441 ** |
| 28 | 53614 | 12E0100499 | 'Spaetlese' | Rhododendron hybr. | unknown | | 2 | 12E0100499 ** |
| 29 | 53647 | 12E0100533 | 'George Cunningham' | Rhododendron hybr. | unknown | | 2 | 12E0100533 ** |
| 30 | 53667 | 12E0100553 | 'Fuego' | Rhododendron haematodes Franch. | Germany | | 2 | 12E0100553 ** |
| 31 | 53702 | 12E0100806 | 'Hachmann's Mikado' | Rhododendron hybr. | Germany | | 2 | 12E0100806 ** |
| 32 | 53713 | 12E0100817 | 'Multimaculatum' | Rhododendron ponticum L. | United Kingdom | | 2 | 12E0100817 ** |
| 33 | 53721 | 12E0100825 | 'Gartendirektor Rieger' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 2 | 12E0100825 ** |
| 34 | 53724 | 12E0100828 | 'Schneeglanz' | Rhododendron obtusum (Lindl.) Planch. | Germany | | 2 | 12E0100828 ** |
| 35 | 53739 | 12E0100843 | 'Loket' | Rhododendron strigillosum Franch. | Czech Republic | | 2 | 12E0100843 ** |
| 36 | 53748 | 12E0100852 | 'Bouzov' | Rhododendron decorum Franch. | Czech Republic | | 2 | 12E0100852 ** |
| 37 | 53753 | 12E0100857 | 'Orlik' | Rhododendron hybr. | Czech Republic | | 2 | 12E0100857 ** |
| 38 | 53756 | 12E0100860 | 'Hluboka' | Rhododendron obtusum (Lindl.) Planch. | Czech Republic | | 2 | 12E0100860 ** |
| 39 | 53768 | 12E0100872 | 'Osmar' | Rhododendron williamsianum Rehder & E. H. Wilson | United Kingdom | | 2 | 12E0100872 ** |
| 40 | 53770 | 12E0100874 | 'Ursula Siems' | Rhododendron forrestii Balf. f. ex Diels | Germany | | 2 | 12E0100874 ** |
| 41 | 65600 | 12E0100882 | 'Klenova' | Rhododendron hybr. | Czech Republic | | 2 | 12E0100882 ** |
| 42 | 65840 | 12E0100887 | 'Karin Seleger' | Rhododendron insigne Hemsl. & E. H. Wilson | Switzerland | | 2 | 12E0100887 ** |
| 43 | 65918 | 12E0100893 | 'Hachmann's Mercator' | Rhododendron hybr. | Germany | | 2 | 12E0100893 ** |