When to Divide Iris in Nc?

The best time to plant or divide your irises in North Carolina is in August or early September while they are still in a dormant state. Plant your iris rhizomes with the roots dug well into the ground, but allow the rhizome (bulb) to remain on the surface. Those planted under the soil have a tendency to rot.

What is the best time to divide irises?

Divide at the right time of year, after flowering, when irises become dormant during late summer, reducing the chance of bacterial soft rot. Avoid dividing during winter when irises are trying to survive on stored energy in their rhizomes. Snip the leaf blades to about one third of their height.

Can you divide iris anytime?

Bearded iris can be divided any time after flowering; this is often done in July or August in the Midwest so the replanted portions will have plenty of time to develop new roots and become established before freezing weather arrives. Lift clumps carefully to avoid damaging the rhizomes.