Chad, which state was that? Here in California, fall is a good time to plant them - they can get settled during the mild weather and be ready to take off in the spring. This would not work well in other parts of the country.

If a tree is grafted or from cuttings from a mature tree, it should bear fruit within a year or two. A seedling can take up to 10 years.

I have a one-gallon Meyer lemon that is starting to bear fruit, and a 3.5-gallon yuzu that should bloom next spring. Both were purchased this spring and I'm keeping them in containers.

All citrus need the right environment (sun, feeding, watering, etc.) to produce reliable crops, so do a bit of research so you can ensure success. Sounds like your neighbor would be a good consultant!

I agree, right now is a great time to start new citrus. It still has enough time to get some new growth, then harden up for winter.