Apart from the iris siberica which I spotted during winter in early February, all the other photos here were taken during the past week in April.
Shaga japonica iris, a very common wild iris that loves fringing ponds and lakes.
Kurista-ta iris is a popular small iris that is used in bonsai displays.
The purple blue irises below are called ayame in Japanese.
White Flag irises
These were the first to bloom early in the year after the New Year