I actually managed to get a 3 foot tree growing from an avocado seed but we moved and I lost it. Gotta start over. Apparently though, from what I researched, growing a tree from an avocado won’t yield avocados the same way avocado farms do.
Grow roses from a cutting. Simply cut healthy stems, place them in large potatoes, and then bury them inches deep in a healthy soil mixture of peet moss and top soil. The potatoes keep the stems moist and help develop the root systems.