Hosta diseased? - Ask Extension
Hi there question about one of my favorite hostas that started to deteriorate with all the rain we’ve had recently. I’ve ripped out about 75% of t...
Knowledgebase
Hosta diseased? #874425
Asked June 24, 2024, 12:24 PM EDT
Hi there question about one of my favorite hostas that started to deteriorate with all the rain we’ve had recently. I’ve ripped out about 75% of the leaves; a few remain and they are not perfectly healthy either; I’ve attached a photo. I have an autumn joy sedum nearby that also has some wilting gray leaves near where this particular hosta is. The hosta was a transplant of another hosta, which is about 2 feet away and is in perfect health. My photos are of one diseased Leif, an up close shot of the stems where I removed diseased leaves, and then a close-up of the autumn joy sedum. Thank you for any help you can provide
Hennepin County Minnesota
Expert Response
Your hosta may be suffering from petiole rot, for which there is no cure. Read the attached links and compare the photos to your plant to see if they match what you are seeing. If this is petiole rot, you'll need to remove the plant completely and clean all tools that you've used to deal with it.. You don't want the fungus to spread to other plants. We're sorry for the bad news, but you can remove this hosta and enjoy the rest of your hosta bed.
https://www.missouribotanicalgarden.org/gardens-gardening/your-garden/help-for-the-home-gardener/advice-tips-resources/visual-guides/hosta-problems
https://yardandgarden.extension.iastate.edu/encyclopedia/hosta-petiole-and-crown-rot
https://www.missouribotanicalgarden.org/gardens-gardening/your-garden/help-for-the-home-gardener/advice-tips-resources/visual-guides/hosta-problems
https://yardandgarden.extension.iastate.edu/encyclopedia/hosta-petiole-and-crown-rot
Thank you! This seems about right!