Last year, I noticed the yellowing and spotting of some of the leaves on my Knock Out roses. The same thing is happening this year. Can you diagnose and suggest what to use? For some reason, I thought ...
A couple of days before Mother's Day, there was a day to celebrate in the world of horticulture. Friday, May 9, was National Knock Out Rose Day. This is the first year this day has been recognized.
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