Knowledgebase

What is afflicting my geranium? #874535

Asked June 24, 2024, 8:38 PM EDT

What is afflicting my geranium plant and why are the leaves turning yellow? Thanks!

Hennepin County Minnesota

Expert Response

While I can;t tell for certain, it looks like you may have alternarialeaf spot. 

This will not kill your plants. It is mostly cosmetic but given our very wet weather, not a surprise. 

Good sanitation is your best action. Remove the diseased leaves and dispose of them in your garbage or city compost. Your geraniums should recover without any special treatment.

https://portal.ct.gov/caes/fact-sheets/plant-pathology/diseases-of-geranium#:~:text=The%20primary%20diseases%20encountered%20on,Crown%20Rot%2C%20and%20Flower%20Blight.

Deb Reierson Replied June 27, 2024, 11:40 AM EDT

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