Why aren’t my Japanese irises not blooming
I have a large bed of Japanese irises with wonderful leaves - close to 5 feet tall, but maybe 3 blooms a year. They are planted in a very wet area, and get quite a lot of sun. Why don't they bloom?
Certified GKH Gardening Expert
Lack of flowers could be soil ph issues or most likely your plants need to be divided.
Here is a link that will help you.