my rosemary plant has a white substance on it

What is it? And should it be removed?

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1 Comment To "my rosemary plant has a white substance on it"

#1 Comment By Heather On 04/21/2011 @ 2:57 pm

This is powdery mildew. This article will help:
https://www.gardeningknowhow.com/edible/herbs/rosemary/white-powder-on-rosemary.htm ^[1]
https://www.gardeningknowhow.com/plant-problems/disease/powdery-mildew-homemade-and-organic-remedies.htm ^[2]

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[1] https://www.gardeningknowhow.com/edible/herbs/rosemary/white-powder-on-rosemary.htm: https://www.gardeningknowhow.com/edible/herbs/rosemary/white-powder-on-rosemary.htm

[2] https://www.gardeningknowhow.com/plant-problems/disease/powdery-mildew-homemade-and-organic-remedies.htm: https://www.gardeningknowhow.com/plant-problems/disease/powdery-mildew-homemade-and-organic-remedies.htm

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