Originally Posted by thelastpirate

I use Epsom Salts as a magnesium, and sulphur supplement, and now to help buffer pH. I still need to adjust, but it seems to help keep it in line.
It doesn't build up in soil like most salts, any accumulation can easily be flushed out, so it's kinda hard to overdo it.
I've been using a tbsp per gal.