Irises grow foliage, never flower
For the 3rd or 4th year in a row, I see definite iris foliage growing nicely in my garden. This year, I can see those ol' rhizomes have been very busy underground, as there are now 3 separate groups of iris spears coming up. Yet, these iris have never flowered. I add Plant-tone to my garden and water regularly, but I have never been treated to a beautiful flower. Or any flower at all. What gives?