Iris Plants
Q.

siberian irises or japanese irises

Zone charlotte,nc | petunia75 added on May 4, 2015 | Answered

How can I tell whether I have Siberian irises or Japanese irises? I've had these irises for awhile but don't know which kind they are. Siberian or Japanese? Also, I don't know what zone I'm in. I moved here from NY and can't seem to figure out the zone according to my grower's map. The line seems close to one or the other.

A.
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shelley
Certified GKH Gardening Expert
Answered on May 4, 2015

To determine your plant hardiness zone, visit the following website and enter your zip code:
http://planthardiness.ars.usda.gov

Judging by the distinct rib that runs down the middle of your leaves, I am pretty sure what you have there are Japanese irises.

For more information on the care of japanese irises, please visit the following link:
https://www.gardeningknowhow.com/ornamental/bulbs/iris/growing-japanese-iris-plants.htm

The easiest way to tell the difference between Sibs and JIs is to feel the leaves. JIs have a very distinct raised central rib running the length of each leaf.

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