>> and I'm gonna repot it, mixing a bit of sand into the pot.
That sounds smart. But coarse Perlite or coarse grit seem more likely to open up a potting mix than sand. Even "very coarse sand" has particles at
largest of 2 mm. That would be OK, but every bag of "extra coarse sand" that I've tried was more than half, often more than 3/4 or 7/8, medium or fine sand, like 1/8 mm to 1/2 mm. Not good for aerating a mix.
Maybe crushed stone would be good, that has been double screened so it is all grit and no dust. I got a yard of that once, and it was great! Mine was almost all grit (around 2mm), maybe a few % very fine gravel (2 - 4 mm).
https://en.wikipedia.org/wiki/...)
I'm a big fan of screened pine bark, but it will either be a very expensive double-screened product, or you would have to screen it yourself.
