My grapefruit plant originally sprouted inside my refrigerator in a rotting ruby red grapefruit. Two years later it is over a foot tall, almost a foot and 1/2 and it has sent out another "sprout". It is planted in an 8 inch pot that is about 8 inches deep. I will bring it inside this winter, but it's kind of top heavy (tall) now. Should I prune it by cutting several inches off the main stalk? Or should I just stake it for stability? Any thoughts on whether it is ready to move up to another size container? If I do that, I don't think I should bury it any deeper than it currently is, correct? Didn't think it would sprout along the stem? I have not been fertilizing it much over the summer. I have dumped coffee grounds on it recently. Is this a good idea? Coffee causes acid loving plants like roses and bouganvilla (sp) to bloom. It looks healthy except for the the leaves some caterpillars devoured in the spring.