Irises forum→Dividing Iris

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Conneaut, Ohio
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Petronius
Mar 11, 2019 5:24 PM CST
When is the correct time to dig and divide Irises?
Name: kathy
Michigan (Zone 4b)
Zone 4b, near St. Clair MI
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katesflowers
Mar 11, 2019 6:42 PM CST
I've divided mine in mid to late summer with success. Gives them time to settle in before winter sets in
But, I have also taken an off shoot in Spring without a problem.
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Name: Monty Riggles
Henry County, Virginia (Zone 7a)
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UndyingLight
Mar 12, 2019 12:27 PM CST
I've transplanted irises in all kinds of month. Some even in January or right before bloom. The recommended time is around August when everything is going to become cooler. But I have planted as late as November and as early as January, and they seem to grow fine.

By the way, welcome to the iris forums! Welcome!
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Name: Evelyn
Sierra foothills, Northern CA (Zone 8a)
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evelyninthegarden
Mar 12, 2019 1:51 PM CST
Petronius ~ Welcome! to the Iris Forum! Hurray!

If I lived in Ohio I would follow the same procedure that those in your area do. I am thinking that no later than late summer, in order for them to get established before winter weather arrives, but I will let others more knowledgeable chime in.
"Luck favors the prepared mind." - Thomas Jefferson
Northern CA (Zone 9a)
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iciris
Mar 12, 2019 6:13 PM CST
Welcome! Petronius
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Name: Scott
Elburn, IL (Zone 5b)
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BlueFlagFan
Mar 12, 2019 6:28 PM CST
Welcome! Welcome to the Iris forum, Petronius! Welcome!

Here in Illinois, zone 5b, I've divided irises as early as July 4th, and try to be done by the end of August. I've read that irises need to be transplanted at least 6 weeks before frost to allow roots to develop, thus the end of August.
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Name: Leslie
Durham, NC (Zone 8a)
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Lestv
Mar 13, 2019 5:55 PM CST
Welcome!

I never divide mine until after bloom time so I don't take away their energy to bloom. So, in my area, anytime between May and September. In your zone bloom probably ends later, so June to August?
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Name: Darrell
Piketon, Ohio (Zone 6b)
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Hybridizer
Mar 13, 2019 6:12 PM CST
I'm in Ohio, I divide mine in July, August, and through mid-September.
Name: Lucy
Hamilton, MA (Zone 6b)
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irisarian
Mar 13, 2019 8:53 PM CST
Welcome

The same time as just above here in Massachusetts.

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