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.
It is not a requirement, and we never cut the foliage off completelyâthey can be pruned into a fan shape. Iris growers who have hundreds of plants often choose to cut back to the fan shape to allow for better air circulation and sunlight penetration, to help prevent diseases.