Originally Posted by Captain Awesome
Avocado trees grow real well from seed until about 2 foot tall. This is the point where they switch from stored energy in the seed to energy from photosynthesis. I know a lot of people who have grown avocado from seed. They all died around 2 feet tall. They need a rediculous amount of light. The plant itself is very unlikely to cause any trouble for the gecko so no harm in trying but I would not plan the entire Vivarium around this plant or at least have a backup plant in mind.
Yeah, I have one friend who has successfully grown an avocado tree, but he already had a giant grow light for his other plants, so when he could plant it he knew he could take care of it. Raising avocado trees from the seed requires quite a bit of patience and a considerable amount of preparedness. That said, if you can provide a really good light, go ahead.