I have always enjoyed growing Avocado's from seeds, In the past, I would peel off the the brown outside casing, place the seed in wet paper toweling place it in zip lock bag an put it in a dark warm place for about a month
This year I just placed the seed in a small container of dirt without bottom heat. an placed it in the greenhouse It took about four months to germinate
I had read someplace that an Avocado seed placed in dirt would be a much stronger plant than the one's in a zip lock bag, as it gets a little bigger I will repot in chc/peat an hopefully I will be able to post some photo's this Spring
This is my first Avocado seed in a dirt mix an after four months of waiting I guess I'm just happy
Dale