Q.What Can I Do About Virus On Hellebores?
The leaves have black spots. Do I have to dig up and destroy?
Certified GKH Gardening Expert
I would try treating it first! If you can't treat it, then you may need to destroy and solarize the soil.
First, you might try a fungicide. This article will help:
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
If that doesn't take care of the issue, then you can try priming the soil with DOLOMITIC LIME and WETTABLE SULFUR. This will take care of most infections.
If all else fails, you will need to take out the installments, refresh the soil, and continue treating until something takes into the soil without contracting the disease.
If that fails to solve the problem, then selecting a completely unrelated species to plant in its place will usually work just fine. Many diseases are plant, or Genus specific.