re: Growing a satsuma tree

That stuff is fine. They will take about anything but triple 13 is a safe bet on anything too. Cheap and it will use what it wants more of. If you leave it in a pot, be sure and bring it in on solid freezes. Takes a good bit to get one planted in the ground, like below freezing for 6-8 hrs, but one above ground in a pot is more vulerable. Not sure where you are but if I remember correctly you are in shreveport. If so, I would keep it in a pot, but if your down south it will be fine outside. I dont buy into the south side of the house thing, but I will throw something over mine if its going to get real cold. If you cover, uncover before it gets too warm the next day, especially if covered with plastic, or it will hurt them worse than the cold. But hey, what do I know about plants.

ETA: I see you are from s'port, so I would stick with the pot. If it starts getting too big, just cut it back about 1/3 of the tree size as soon as the fruit comes off.