In China, apparently the
original home of the roof iris, where it has been grown since at
least the seventh century, the plant grows on the ground like any
sensible iris. But in Japan, it was found growing on the ridges of
their thatched roofs. Apparently this tradition started in
Japan because of a decree by a Japanese emperor during a period of
wartime when it became illegal to waste land growing flowers. All
available land had to be used for rice or vegetables.
Blooming season:
Late spring to early summer
Plant habit:
Characteristics:
Uses:
Japanese
Roof alba
Spacing:
12-16" Height:
12-18"
Exposure: Shade
Large, white, crested
flower with a yellow throat blooms at the end of arching stems.
Leaves are light green, about a foot long, broadly sword shaped.