Iris blooms?

I have multiple Iris flowers but they did not bloom last year of this year. Are there certain types that do not bloom or have I done something to mine to cause them to not bloom? They grow every spring just as they should, but no blooms. Help?

Iris blooms?
This is for Bearded Iris.


Maybe you planted them too deep?


They need to be planted about an inch deep so the rhizomes surface still exposed.
Reply:The answer depends on the iris variety.





Some of the common types just need to be divided and replanted every few years. Some varieties do have a shorter lifespan than others. Some don't like to be crowded in with other plants, and some don't like it when debris builds up over time around them. They tend to like shallow holes..too deep and they stop blooming.





I have a siberian iris that grew into nice healthy looking plants but stopped blooming and I divided, re-set, re-planted, fertilized, you name it I did it to try and get it to rebloom...after I came to the conclusion it was just "spent" I finally went out and bought new ones this year.





Doesnt' really solve your problem, but if you have tried all above, then my advice is to dig them up, toss them out and replant with new rhizomes.
Reply:Hard to say, mine are in bloom right now. Did you have drought? Too much rain? Are they planted where they don't get enough light now? did trees overgrow them? How old are they? Maybe they've bloomed enough and are too old. Even a general idea of where you are located and what type of environment they are in would be helpful.
Reply:Make sure they are not crowding each other. This will choke them out. Depends on the variety, some only bloom every other year. Also, do not mow the leaves off when the bloom is done. This will effect the bloom. Good Luck
Reply:yes their are some that dont bloom. one that is white and blue very rarely blooms and has one flower for every 10 plants.