Relations and functions | Functions and their graphs | Algebra II | Khan Academy
I'm sure I read that leaves should be left alone for six weeks to strengthen the iris and create more offsets. They can be cut back, lifted and moved after six weeks. So if you can pot up the annuals and wait the six weeks, then move enough irises to plant your annuals at that time. Thanks Good ideas. Think I will wait 8 weeks, then lift some Iris and move thus freeing up space for annuals.
I too cut back my Japanese Iris foliage and also my Siberian Iris foliage (I've found it's easier, IMO, to cut it green than brown). Doesn't seem to affect their bloom. As for the Bearded Iris, I only cut back for looks, nothing else.