All flowers
Japanese Iris Wikimedia Commons
Iridaceae

Japanese Iris

Iris ensata

Heroic spirit, valor, summer rain.

Family
Iridaceae
Genus
Iris
Native to
Japan, Korea, China, Russia
Bloom season
Early-Summer
Type
Perennial
Height
60–120 cm (2–4 ft)
Sunlight
Full sun to part shade
Soil
Wet, rich, acidic
Water
Very high
Hardiness
4–9
Lifespan
Long-lived perennial

Did you know

  • Japanese irises (hanashobu) have been bred in Japan for over 500 years—the Edo, Higo, and Ise breeding lines are each guarded by their own specialist societies, like koi or bonsai.
  • Some Japanese iris flowers reach 10 inches across—the largest of any iris—and look so much like flat butterflies hovering above the water that they're sometimes called 'sword butterflies.'
  • The plant requires its roots to be flooded in summer but bone dry in winter—Japanese gardens traditionally raise and lower water levels in iris ponds with the seasons.
  • Japanese irises are celebrated in the iris festival at Meiji Shrine in Tokyo every June, where over 1,500 cultivars bloom in the historic garden once tended by Emperor Meiji.
  • The leaves have a sword-like shape that gave rise to the Japanese tradition of hanging iris leaves at boys' Children's Day on May 5—the leaves were said to ward off evil spirits and inspire bravery.

Color meanings

0

heroic spirit

1

valor

2

purification

Uses

  • Pond margins
  • Bog gardens
  • Cut flowers
  • Asian-inspired gardens