Iris Plants
Q.

Yellow Flag Iris

Anonymous added on July 6, 2011 | Answered

I have had yellow flag irises for 3 years and they have never flowered. They look healthy and keep multiplying though. My purple irises flower every year. Do you know what could cause this?

A.
A.Answers to this queston: Add Answer
Nikki
Certified GKH Gardening Expert
Answered on July 7, 2011

The most common reason for irises failing to bloom is overcrowding. Dividing and transplanting them usually helps. In addition, it can be attributed to poor pollination. Try to entice pollinators (bees, butterflies, etc.) to the area with brightly colored flowers. Here is an article that you may find helpful: https://www.gardeningknowhow.com/ornamental/bulbs/iris/dividing-transplanting-iris.htm

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