When should I cut back irises to ensure they remain vigorous and aesthetically pleasing throughout their growing season? What specific cues should I look for in the plants’ lifecycle to determine the optimal timing for such pruning? Is it best to conduct this task immediately after blooming, or would waiting until the foliage has completely withered prove more beneficial? Are there particular environmental conditions that might influence the timing, such as regional climate variations or varying sunlight exposure? Furthermore, could the age or overall health of the irises dictate different strategies or timelines for cutting back? How might the objectives for pruning, such as promoting new growth or minimizing disease, alter my approach? Lastly, what tools or techniques should I employ to ensure a clean cut that fosters robust regrowth? Reflecting on these inquiries can lead to a deeper understanding of the irises’ care and maintenance requirements.