The Q&A Archives: Rose bush changing color and bloom type

Question: I have a three year old climbing rose that up until this year had red blooms on it. The blooms would be small, in clusters, with many layers of petals to each bloom, but didn't look like your typical cut rose. This year, it has white blooms, also in clusters, but only a single layer of petals to the blooms. It looks very similar to the wild roses I see growing along the road in my rural area. The bush did get a small case of black spot last summer, but I took care of that. Otherwise, the rose has remained healthy and strong, and is bigger than ever this year. What could possibly make this happen? And, is there any chance my beautiful red blooms will come back? I was really looking forward to seeing that climber full of red this summer! Thanks for any help you can give me.

Answer: Unfortunately, I suspect something has happened to the grafted rose that bloomed red, and now the root stock is what you see blooming this year. A severe winter could cause damage to the graft, for example, or perhaps it was physically damaged in some way. I'm sorry about your rose.

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