roseman
Answered on May 5, 2016
What you witnessed happens some times when roses have been fed with high nitrogen fertilizers. Other times it is just a hiccup of nature. Those are called vegetative centers. I have seen roses do this and actually have a new cane grow up out of the center of a bloom like it was trying to grow another rosebush. Here is a link to an article about rose deformities for you: https://www.gardeningknowhow.com/ornamental/flowers/roses/rose-deformity-info.htm
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