very few iris blooms
I have a small garden with iris that bloomed beautifully a couple of years ago and then last year, very little and the same this year. I think so far I have had maybe 4 blooms. I don't think that the plantings are too thick, they are sort of in a line and about 2-3 deep. A couple of plants had buds that seemed to rot. It isn't especially wet or anything and gets a fair amount of sun. Last year we mulched all the gardens and now I am hearing you shouldn't mulch irises, but before we mulched the blooms were pretty pitiful last year as well. Any ideas?