In this paper, we discussed the distribution, ecology, characteristics and their growth potentiality of four native Rhododendron species including R. kanehirai Wilson, R. nakaharai Hayatea, R. oldhamii Maxim and R. simsii Planch in southern part of Taiwan. We found that the native Rhododendron species could grow well in southern part of Taiwan, besides the flowering period was longer than wild type with a significant difference. These species could be useful as ornamental plants and the parents for breeding.
