Four new cultivars from native plants of Taiwan are described in this paper: Chamaecyparis formosensis 'Millennium' (Cupressaceae), Cinnamomum reticulatum 'Obtuse' (Lauraceae), Clematis tashiroi 'Yellow Flower' (Ranunculaceae), Ficus microcarpa 'Rotund' (Moraceae). These cultivars are useful for ornamental and landscape planting.