There have been several discussion over the past couple of weeks over the merits (or lack of) of LFS as the sole or a portion of potting mix: I've only ever used pure LFS a handful of times, and have since slowly repotted everything out of it. Today, I finally had the time, and enough of the other mixes I prefer to use on hand so I took the liberty of unpotting my last pure LFS plant. I thought it might be of benefit to "document" this process.
My experience "unpotting" from LFS is always frustrating. The roots and LFS make a terribly tangled mess. It was near impossible to even come close to removing it all without massive root damage; unless I wanted to spend even more time and energy attempting to do so, at the possible cost of more root damage. Imagine a 8" pot with a depth of 8", full of LFS. After about ten minutes, I was left with this:
During the process I know I lost several roots as I could see them in the pile at the bottom. However, I know it didn't cause any permanent damage and will certainly recover. I only wish the LFS still in the ball would quickly turn into a slime and melt out the bottom of the pot and leave the new mix all by itself.
After working a little more, I finally repotted what was left in, in my opinion, a much preferable mix (orchid bark, some charcoal, perlite, some peat, and a pinch of LFS):
And, now we all get a chance to see why xvart is going to sleep on the couch tonight! (Just kidding) It was much worse, but I did quite a bit of cleanup of the dirty water that was spotting the carpet and the LFS shreds that were everywhere.