Thanks for the info

Two more questions - 1 Would it get enough pollination from being outside just in the summer months? I live in Michigan, so like zone 5. and 2. So the fruit in the picture is just made to look smaller? If so I may consider another tree. The only reason I would get this one would be for the little tangerines it would produce.
Also, to applestar I recently acquired a lemon tree from a friend. He grew it from a seed, from a lemon he got from the grocery store. It's probably about 4ft tall. I'll be putting it outside as soon as it's warm enough. I'm real curious to see if it'll produce some lemons
Thanks again for the help!!