Back in April (5 months ago) I decided to start a little experiment with Masdevallia and different growing mediums. Until then I had only cultivated my Masdevallia i sphagnum moss, but I wanted to try goring them in semi-hydro volcanic rock. I had two near identical M. tovarensis orchids so they were a logical choice for my small experiment. Warning: Sweeping generalizations and vague scientific conclusions ahead.

Here is the report on the result.

The control, Masdevallia […]