If your bearded irises bloomed sparse and sad this past spring, or if the clump looks like a tangled mess of woody rhizomes fighting for space, September is basically begging you to fix it. This is the sweet spot window — soil’s still warm enough for roots to establish, but the brutal heat of summer…
September Is Prime Time to Divide Your Overgrown Bearded Irises — Here's How Not to Mess It Up
If your bearded irises bloomed sparse and sad this past spring, or if the clump looks like a tangled mess…