Divided And Replanted Iris This Summer That Have Failed To Thrive, While The Ones We Moved To Six Other Locations Are Thriving.

Question

divided iris had not been divided for probably ten years and were severely overgrown amended soil with peat moss, compost bone meal and low nitrogen fertilizer. Shortly after dividing the garden became choked with weeds and had to dig up and replant. Wondering if ph is factor but usually iris are not that fussy about ph.

Answer 1

They probably need more time to establish after replanting twice. These articles may help:

https://www.gardeningknowhow.com/ornamental/bulbs/iris/dividing-transplanting-iris.htm
https://www.gardeningknowhow.com/ornamental/bulbs/iris/divide-bearded-irises.htm