The aim of our study is to review the results of genetic transformation of rhododendrons which has been published in scientific literature or presented during scientific conferences so far. Despite complicated and work-consuming protocol, genetic transformation has great potential to improve future ornamental plants. Rhododendrons of tomorrow could have desired morphological architecture and flower pigmentation, resistance to diseases, pests and harmful environmental conditions. Gene transfer experiments that were carried out so far, proved successful. More and more significant factors are discovered during each investigation. However, that study has to be worked out in order to optimize the efficiency of genetic transformation. Then, we can speculate that traditional rhododendron breeding will be hastened. Breeders will have exclusive plants whose genomes will be transformed in terms of desirable features.