You can put it in its final pot if you like, or just a step larger. That's a bit over two gallons if I'm converting in my head right, so.. yeah, that'd work, depending on how big you want it to get or if you're gonna transplant again. As they get bigger it becomes more difficult for me to transplant easily (I am growing old and have a bad back), so I like to put them in their final spot pretty quickly, one transplant only if I can help it.