rebloomers more prone to rot?
With all the rain NYC has received this spring I have unfortunately lost much of the blooms on my re-blooming bearded iris's.I usually get some soft rot during times of heavy rain but this year has been the hardest on my plants.I had to lift out many of the rhizomes so that they may dry sufficiently.These were intermingled with non rebloomers none of which have soft rot nor ever have.Often the problem occurs a second time in the fall when heavy rains return just when most are either blooming or sending up stalks( my non-rebloomers are again unaffected)
I have decided this time when replanting to simply 'sit' the rhizomes of the re-bloomers on top of the soil so that only their roots penetrate into the soil thus allowing the rhizomes themselves to dry quickly after downfalls of rain.I decided to do this after seeing the way many of the rhizomes on my re-bloomers tend to grow straight up out of the soil (Fully exposed) after having been left undisturbed for several years( high humidity during summer?)These are never affected by rot and send down roots into the soil that are sometimes themselves partly exposed to air.
My questions are the following...Has anyone else noticed an increased vulnerability to soft rot amongst re-bloomers when compared to non-re-bloomers or is this just my bad luck? Has anyone else simply sat the rhizomes on top of the soil?what has been your experience with that? and lastly Does anyone else's re-bloomers grow rhizomes straight up out of the soil in areas of high summer humidity?
Responses would be greatly appreciated