when can you cut iris back
Care for Winter Iris I have a couple types of iris plants and I either cut them back as they start to die in the fall or just wait and mow them over when they all have turned brown. In the spring they come back. Iris' are very strong and hard to kill. Good luck! I have read that you should let the leaves die down since all the nutrients will go back into the bulb for the winter. I usually wait until after a few good hard frosts here(Mn) and then the leaves can be easily (gently) pulled off.