My 4 ft Satsuma in a pot did not do as well this year as they did last when they got much more sun and regular water. But it is full of green leaves and is still hanging on to it's only 2 oranges. I did feed them twice. They should be fed between April and August only adding nitrogen if necessary. I have a shoot that might be a sucker? I can't tell? It is a nice branch from the bottom with teeny tiny leaves on it. I might trim it back since it is from the bottom though it has interesting growth.