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What's wrong with my rhubarb and how can I help it? #829590

Asked May 11, 2023, 8:00 PM EDT

My rhubarb (that I got from a neighbor) has been living in a big raised bed for years. The past couple of years it has ended up with spots on it and we clearly need to help it. It's coming in now with some of these spots. Can you help identify what it is and what we should do?

Hennepin County Minnesota

Expert Response

Hi Sara,

The two likely causes are listed at this webpage. Sanitation is important to prevent these diseases, so remove infected leaves and clean the plant up in the fall.

https://www.gardeningknowhow.com/edible/vegetables/rhubarb/brown-splotches-on-rhubarb.htm#:~:text=The%20two%20most%20common%20diseases,upper%20surface%20of%20the%20leaves.

Your leaves resemble the first disorder, which does not affect stalks.

Hope this helps.

MJ Replied May 11, 2023, 8:39 PM EDT

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