File this away in the “so now we know” category. Also in the, “grr…now there’s another section of the garden to be wary of” category.

As we were cleaning out the Herb Garden on Tuesday, we pulled up the marshmallow plant, only to find this:

GRR! That is a very nasty look at the roots of the poor marshmallow plant. It had been rather yellow and wilty for a large part of last summer for no apparent reason. Well…now we know why! It is absolutely infested with root knot nematodes. Into the dumpster with the plant. Something else to watch for in that garden now.