No, i have really not been able to find information on that and its not for want of looking!! Maybe i should buy some broad leaf seeds.. we dont have it here, just the broadleaf! I will add that observation to my journal though.

Havent seen my hens near the plantain. Those brown marans I got.. not the coppers... eat bloody everything!!!! Might get rid of them. They are less chilled than the barred and the coppers.