A picture of a Iris 'Kumo-No-Obi'

Iris 'Kumo-No-Obi'

Iris ensata 'Kumo-no-obi'

Also known as

Japanese Iris 'Kumo-no-obi', Japanese Flag 'Kumo-no-obi', Japanese Water Iris 'Kumo-no-obi'

Photo by torgardenplants (All rights reserved)

Full Shade
Frequent watering


RHS hardiness


Minimum temperature

Expected size








5 years to reach maturity


  • spring
  • summer
  • autumn
  • winter

Iris 'Kumo-No-Obi' Overview

Iris ensata 'Kumo-no-obi' or the Japanese Water Iris is a deciduous perennial that produces stalked clumps of lance-shaped medium green leaves. In summer erect stems bearing dark-purple flowers appear. The "falls" - the three outer petals are attractively marked with basal yellow areas. Iris 'Kumo-no-obi' is a sun-loving, fully hardy plant that will also tolerate partial shade. Growing from underground rhizomes, it is happy growing in damp soils, making it a suitable plant to grow along watersides, in boggy damp soils as well as garden borders. Needing little care, flowers can be removed from stems as they fade, and dead or dying leaves can be cleared as needed. Some people have experienced skin irritation when handling this plant; wearing gloves is advised. Keep an eye out when young children or pets are near as all parts of this plant are toxic, causing discomfort if eaten.

Common problems with Iris 'Kumo-No-Obi'

Iris's can suffer from a virus and attack from sawfly larvae.

How to harvest Iris 'Kumo-No-Obi'

Flowers can be cut as required for floral arrangements. Allow seed pods to dry on the plant. Once ripe, these will need breaking into to collect the seeds.

How to propagate Iris 'Kumo-No-Obi'


Divide clumps from midsummer to early autumn.


Sow the seeds in the autumn or spring - - seeds collected from cultivars may not come true.

Special features of Iris 'Kumo-No-Obi'

Attractive flowers

Attracts useful insects

Ground cover

Wet sites

Other uses of Iris 'Kumo-No-Obi'

Aquatic, bog, border, cutting bed. Informal cottage style plantings.