Is there something wrong with my rosemary? - Ask Extension
When you first look, my rosemary looks great. It's full. It's big. Its flowering (see attached). But when trimming something near it today I noticed t...
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Is there something wrong with my rosemary? #864418
Asked April 13, 2024, 6:10 PM EDT
When you first look, my rosemary looks great. It's full. It's big. Its flowering (see attached). But when trimming something near it today I noticed that there were brown and orange spots on several leaves. I looked all over, even the undersides of leaves and didn't see any evidence of bugs. Is there something wrong with it? Or maybe just winter burn? If there is something wrong, what is it and what do I do about it?
Thanks
Montgomery County Maryland
Expert Response
Hi,
Many rosemary plants are borderline hardy in our area of MD. Looking closely I see that there is new growth coming up that looks perfectly healthy, The attention grabbing damage looks more to be of environmental causation--winter burn was a likely culprit. Those leaves will drop off as the new ones grow out to replace them.