Hello,
I was wondering on what types of rock people are managed to grow Pinguiculas. I have seen people grow them succesfully on tufa and other types of lava, but I was wondering if they could possibly grow on rocks like basalt,
Maybe if I have the space next year I will try some different types of rock, but it is going to take a while to see if it hurt the plants.
I am curious what your experiences are.