I recently came home from a trip to discover three of my plants had developed weird spots and the leaves had turned brown.
While I was gone, we received over 2.5 inches of rain. My first thought was that the silene regia 'Prairie Fire' pictured here were suffering from too much water, but the entire plant isn't affected, only certain parts. My silene grows in a pot but the pot drains well.
The leaves have brown spots and the leaves that are completely brown are dry and crispy to the touch. But not all of the leaves are affected.
Despite the problems with the leaves, a few blooms have opened.
Even new growth is infected.
I'm worried the plants might have a virus or bacterial infection because both the silene and a clump of liatris ligustylis in a nearby pot are affected. Do you think this might be botrytis?
Pathetic pot of affected liatris plants
They're still putting our new growth despite the weird spots on the leaves.
The silene share a pot with a 'Tiki Torch' coneflower that also has weird spots on its leaves.
The coneflower is blooming but the flowers are small and runty.
Here's the whole wretched lot. The liatris in the front pot are unaffected as are the neighboring plants.
Except the vernonia (New York ironweed) in a bed nearby are also have weird spots on their leaves. We've had a very rainy spring/summer that I think has helped spread disease.
The flowers are unaffected. Do you have any idea what the problem might be?