Here is my tour, as before taken in order of the visit, of shinjuku gyoen, an enormous park also suggested by the estimable @opusoculi . It is not one but several gardens, nearly 150 acres, and like every garden I visited in Japan closes at 5pm. I got there at around 2, having sheltered from an enormous thunder storm in a pretty good underground soba joint. Could have easily spent double or triple the time. The visit started in the wild garden, before a window opens on the Japanese garden. Some fuchsias were still in bloom, tho as everywhere most were past. Note the last photo of the 3 A. amoenums planted together the way we often use birches here, minus the moss of course!