The Q&A Archives: Hostas and Southern Blight

Question: 10 yr ago As a deep south gardener, I was told I could not raise Hostas. I now have over 500 in various gardens. I usually lost 3 to 5 hostas a year to Southern Blight or crown rot.

I have found 2 effective products that have helped me stamp out the fungus.
Regular clorine bleech at 10 to 25 pct solution and Prostar 50/70 sprayed 3 times per yr stops SB.
Got any other solutions to SB?

Answer: I'm glad to hear you've managed to avoid southern blight on your hostas. It is typically not responsive to fungicides - once you determine your plant has it, it's too late - but soil fumigation is often used to kill the soilborne pathogens. I think your bleach solution is probably what is keeping the pathogens from moving in the soil. I don't have any other control suggestions, but best wishes with your hostas~

« Click to go to the homepage

» Ask a question of your own

Q&A Library Searching Tips

  • When singular and plural spellings differ, as in peony and peonies, try both.
  • Search terms are not case sensitive.

Today's site banner is by dirtdorphins and is called "sunset on summer"