<span style='font-size:12pt;line-height:100%'>I had traded a few Mexican Pinguicula to one of our local cacti/succulent nurseries for some pots and pumice. They have a greenhouse where they keep a few orchids and succulents that prefer a little more humidity than most. One of the plants they received was Pinguicula esseriana. I gave them "one" plant in a 3" plastic pot, planted in 100% peat moss.
They water with straight well water, very high TDS (200+ PPM), lots of calcium. They have had the plants for a little more than one year. A few days ago they asked me if I could repot the plants and to take away the extra plants.
To try to describe what I found: There were Pinguicula plants growing everywhere, and they were covered with flowers. There were Pinguicula esseriana filling 8 or so pots, there were Pinguicula esseriana growing on the pot edges, on the gravel beneath the bench, on the concrete blocks that supported the bench, on the wooden slats of the bench, in the pots of nearby succulents, and various other places. There were more than 100 plants of Pinguicula esseriana spreading out from the "one" plant I had provided them. Their watering technique seemed to be conducive to leaf propagation, au naturale.
Most of the original peat moss had either rotted or washed away. Most of these plants were just growing on the surfaces of objects that were there. No media seemed as good as any.</span>