Me again...when trying to sprout an avocado, which end up? Maybe I'm doing it wrong. I have never had one sprout. Shout I do it in water or n

Which end is up definitely matters if you're sprouting it in water. For most avocados, the bottom is the flatter side. Growing an avocado works best if you start with an avocado that's already beginning to put out a bit of a root--even more so if you we're sure which way's up!