Next time you have avocado in the house, keep the seeds after eating Wash the fruit away from the seed, put seed in 2 cm deep water, and 3-5 Weeks later, the seed is growing I tried 2 methods... 1) Clean the skin away from the seed, this take some time, have to do very carefully 2) just leave the dark skin on the avocado seed... Method #1 produces more growing plants, however I don't know how strong those plants are, with method #2 the baby plants have to do some serious fighting to break the skin, not so many seeds are growing, however I believe these will be the stronger avocado plants....