Your big new branch appears to be a water sprout; I would prune it back to the general canopy level; it is a sign you are being too kind to your tree. Maybe next year the new branch will produce. Do not cut any of the flowers; if they make fruit, you can cut most at the size of BB or pea to give the tree more energy to put into growth.

I have read also to allow the tree to do its flowering cycle because it has something to do with hormones. If you remove the flowers, the tree will just continue to push them out. If you don't want fruit, wait until the cycle has passed and then remove the fruit. Last year my tree pushed out blossoms, set fruit and then I ended up unknowingly knocked most of them off while moving it through my sunroom door. The plant focused on foliage the rest of the year.

Steve, you crack me up...lol Just put aluminum foil around the buckets and you will have shiny ones too) Rene, now that your trees are outside they will grow back leaves suited for summer. You gained leaves that are use to lights not the sun and that is why you shedded the darker older ones. They should grow back. Becareful though not to put your trees right back into the sun right away or they will burn off. They actually look pretty good for being held up indoors for so long. Hope you are not in stoe for another winter blast like we are here in good ole New England( As for the bugs, I use Neem oil mixed with a bit if natural soapy water and drown/suffoctae the buggers. Not sure whay they are, too hard to tell. Did you use outside soil, or a bagged sterile mix? What kind of soil is that?

Hey all, starting a new thread here to avoid completely hijacking the one I initially posted some questions in. I just got a 2-3 year old Meyer lemon tree that is about 3 feet tall, and I'm looking to grow it fully indoors in my apartment. I understand this may not be ideal but I do have decent sized south-facing windows that get a lot of light, so I'm hopeful I can manage to get at least a handful of lemons. Picture of the setup is below, this weekend I'll move it upstairs where I have the same windows with all 3 shades always open. It's honestly looking a bit sad currently, the branches are much more droopy than when I first got it (and it was shipping in a box for an entire week). The blossoms are drying out, one fell off this morning. I just picked up an IR thermometer, with my thermostat reading 75 the soil temp is 60 and top of the leaves is 66, seems like an OK difference to me but I'm not sure what's ideal. Haven't repotted yet, it's in a 5 gallon plastic pot for now and I'm looking at moving it to a 5 or 7 gallon fabric pot when my new soil is delivered on Saturday. Looking for tips or anything else that would be useful to measure, I want this tree to be the best it can be (without needing an insane amount of maintenance) and I'm not afraid to get scientific with it. Thanks to everyone who has helped me so far and to anyone else who takes the time to read and respond!