Knock Out Roses Changing Colors

Joined
Feb 11, 2023
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Central OK
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About 15 years ago I planted four Knock Out Roses, two yellow and two red. I planted one of each color right next to each other in the corners or our yard hoping the branches would intermingle. Boy was I wrong. One of the yellow ones died years ago and the red one next to it has been a showstopper ever since. It puts out a massive amount of blooms each spring.
In the other corner, the two roses have done poorly being that close each other. The red one was the worst so last year I took it out and the yellow one has really come back this year. The thing is, it's putting out yellow and pink tinted white blooms. Did the two cross breed somehow?
Thanks.
yellow-roses-02.JPG
yellow-roses-01.JPG
 

Ginger with Roots

Ginger with Roots
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Jan 28, 2024
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Fair Play, SC
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It might have reverted back to its root stock that it was originally grafted on. Can you see far down the cane goes and if it comes out below the main rose bush?
 

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