My rhubarb came up great this spring, but after the first cutting it is dying off. This is the second year this has happened. What is wrong with it?
Certified GKH Gardening Expert
It may be over-harvested. Over-harvested rhubarb is far more susceptible to pests and disease. You may need to let it sit for a year and not harvest to let it really establish so it is harder to over harvest it.
But, for this immediate situation, it sounds like a fungus is attacking it after the harvest - so you can try treating it with a fungicide. Neem oil is a good choice as it is organic and safe for consumption.