Knockout Rose Bushes

Knock Out Roses Yellow Leaves


rosepedal added on March 11, 2013 | Answered

We have several Knock Out roses. They have some new growth but the old growth has yellowing leaves with black spots on them. What is this and is it a common problem? What should we do to remedy and keep it from reoccurring? Thank you!


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ANSWERS
AnnsGreeneHaus
Answered on March 11, 2013

This article should help: https://www.gardeningknowhow.com/ornamental/flowers/roses/yellow-rose-leaves.htm

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