|planted all purple iris`s but into bloom time a yellow bloom appeared.Can iris`s change color,or did I have a rouge tuber.Thank you again,as always you are great!
|Answer from NGA
May 29, 2010
|I believe you! We've had enough questions about this over the years that we know it's not a fluke. The phenomenon seems to be the result of stress. Iris growers verify this fact, but they don't yet understand the mechanism that causes the color change. I'm not sure if yours will ever revert to the purple color again, but I can imagine the yellow and purple will look great together.
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