Whether in the East or the West, people see the spread of non-native rhododendron species as a headache. In Taiwan, the double-petalled rhododendrons grown in containers are Western hybrids from countries such as Belgium; those planted in gardens and under sidewalk trees are Hirato or other cultivars from Japan. Even the rhododendrons around the memorial to anti-Japanese resistance at Wushe are Hirato rhododendrons.
雖然時下最流行的庭園杜鵑，母本中不缺台灣原生杜鵑與花期長、分佈廣的中國唐杜鵑，但看著台灣種在盆裡的重瓣杜鵑，是來自比利時等地雜交育種出的西洋杜鵑品系；庭園裡、行道樹下，是日本培育的平戶杜鵑、久留米杜鵑品系；霧社抗日紀念碑下，種的也是平戶杜鵑。