Iris ser. Sibiricae is a series of flowering plants in the genus Iris, subgenus Limniris. The series was first classified by Diels in 'Die Natürlichen Pflanzenfamilien' (edited by H. G. A. Engler and K. Prantl) in 1930. It was further expanded by in Gentes Herb (written in Dutch) in 1953. Most species are easy to grow in temperate zones (including the UK). They prefer semi-shaded positions, that contain moisture during the summer. They also need soils with a pH level of more than 7. The series includes:-