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.
Overview. Gardeners growing irises must divide and move them every three to five years for optimal blooming. If you allow irises to become crowded in a growing area, blooms will decrease and deteriorate. Move iris plants in midsummer to allow them ample time to acclimate to their new homes before winter temperatures set in.