Cooperative Extension: Garden and Yard

Can you consume Rosemary if Leucocoprinus birnbaumii is growing in the same location?

Question:

I have Leucocoprinus birnbaumii growing in a pot of Rosemary. I know the mushroom should not be eaten, but is it safe to eat the rosemary since they share soil?

Answer:

University of Maine Cooperative Extension mycologist, Dr. Seanna Annis, answered: “Yes, you can eat the rosemary if you wash it as normal.  The mushrooms would be producing spores which can be blown around but they will breakdown quickly on the surface of the the plant and away from water and a place for it to grow. The fungus cannot colonize the rosemary leaves and also will not be producing any chemicals in the plants.”