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.
Unlike many other perennials, iris rarely require a serious trimming. Pruning back the leaves before transplanting is a necessity to avoid damaging them. Minor trimming, especially before the winter months, also improves the look of the plant and helps prevent diseases from affecting your iris plants.