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.
Tip. 1  Lower plant pots into the water on an angle. 2  Do not use pots with drainage holes. 3  Divide iris plants every four years so that they do not take over.  Cut off spent flowers and yellow or brown foliage on your iris plants to maintain a neat appearance and a healthy plant.