Last spring I bought two dwarf citrus trees, ruby red grapefruit and tangelo, in 5 gallon pots. I bought them because they are on Flying Dragon stock so should not get bigger than 8 feet tall & wide. They are doing very well in my small greenhouse and I want to set them out in the ground in the large greenhouse soon. This is in Northern Arizona where temps get down to 5 or 6 in the winter, and it snows.
Meanwhile, I bought a fixer-upper house in Apache Junction, a totally different climate -- hot & dry, but plenty of room for citrus trees. All I could find at the Big Box stores were labelled "semi-dwarf". The salesmen all assured me that this was the same as "dwarf" but the tags say they can get to 15 - 20 feet. (Liar, liar, pants on fire?) Anyway I bought 5 varieties for AJ and one AZ Sweet orange for my greenhouse up here ... and now I think putting the "semi-dwarf" in the GH with the Flying Dragon would be a mistake -- the ceiling is from 8 to 10 feet high. Also, down in AJ, I planted the citrus the same way I would have up here in the greenhouse, 8 feet apart, but that is probably a mistake too.
So what do you think? Should I take the AZ Sweet orange down to AJ, and then move them all 15 feet apart?