i dug and dried some oriental iris rhizomes. Should they be planted this fall or wait til spring?

Question

I live in the South part of Ohio and am giving oriental iris to my daughter who lives in the northern part – probably 6 zone. The rhizomes are dry and seem firm. Should she plant now or in the spring?

Answer 1

Irises are usually planted in late summer up to early fall. Much later and they might not have time to get established before freezing weather.

I'm not finding information on oriental iris and wonder if you mean Siberian or Dutch or Japanese iris? There are oriental lilies.

Here is more information on caring for iris bulbs:
https://www.gardeningknowhow.com/ornamental/bulbs/iris/dividing-transplanting-iris.htm