Thank you @cyndi, that was a really useful link! You seem to have information on just about anything! I will be trying one of the lemons soon, so exciting! There is also a green one and some tiny beginnings of fruit as well, so hopefully I won't mess this up - imagine having my own (small) supply of homegrown lemons, that would be such a luxury!
Thank you @columbiariver and @gjones. I have always wanted a lemon tree, but I had decided it was too extravagant to just go out and buy one. I do have a citrus that I started from seed about 15 years ago. That tree looks great, but chances of fruit probably aren't great, as I used a clementine (I think) from the supermarket, and I'm sure they are accustomed to a lot more light and warmth than I can give.
Happy birthday belated sorry for so late and you are welcome. It should produce fruit unless it was the type some companies spray with sprays that wont allow to come to fruit. All organic fruit in stores with seed will produce tho if ya find stuff on sale save the seeds and try. Its worth it. You get your money back 10fold ++. And even if it doest fruit you have planted 1 more tree needed for shelter shade oxygen. Lol. Xoxoxoxo