white spots on rosemary

kokumberFebruary 26, 2012


I am growing rosemary indoors, in a pot facing west, in NYC. I recently spotted white spots on a few of its leaves. Can anyone tell me what they are, and what I should do? Thanks!



Here is a link that might be useful: rosemary white spots

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Can't see your photo, but this time of year it's usually powdery mildew. Cut off the worst branches -- they won't recover because the fungus has penetrated the leaves. Then make up a mixture of one part any type of milk to 5-6 parts water, and drench the plant in the daytime, when it's in good light. Repeat in a week. Meanwhile, move the plant to a cool, drafty place like near a leaky window where it will get chilled to the mid 50's. These measures will hold the mildew at bay until new growth starts in a month or so.

Can you tell I've been there, done that?

    Bookmark   February 27, 2012 at 9:38AM
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Thank you, planatus. If you are curious, the picutres is at the link in the original post, also linked from "rosemary white spots" at the bottom. thanks!

    Bookmark   February 27, 2012 at 11:32AM
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rhizo_1 (North AL) zone 7

Your Picasa link says "sorry, that page was not found"

Try again to post a picture.

    Bookmark   February 27, 2012 at 12:29PM
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Dont keep your Rosemary wet. It likes to be dry esp if its indoors. Keep in a very sunny window. You want it to completely dry out before watering. Almost like its begging for water.

    Bookmark   February 27, 2012 at 3:48PM
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