Blooms twice a year here, starting sporadically sometime in mid-late April, then blooming almost daily until the end of June, and then later again in the fall.
Always happy to see this one, always sad to see the end of it. The plant has beautiful green foliage and the fragrant blooms always open well. I have it in a raised bed, so I see the blooms eye-to-eye. Blooms just over a month here, from the end of May shortly into July.
Evaluating an iris seedling, hopefully for rebloom