The early summer garden is a paradise with iris and water lily.
From 8:30 a.m. to 5:30 p.m.
Irises in "Nishi-shinen"(West Garden)
Water lily in "Naka-shinen"(Center Garden)
"Higashi-shinen" (East Garden)
The general information and Google map.
More information : http://www.heianjingu.or.jp/shrine/garden.html