There's no additional information on the other side of the tag... and I don't know what a root stock is! Thank you, I had it outside from when I got it until late fall, and when we've had warm days I've taken it outside while the sun is strong. I'll put it back out when it warms up :-)

Ok, the root stock is what the tree actually grown on, it's grafted to a cutting from a Meyer lemon. If you look at the base of your tree about 3"-4" above the top of the soil you can see a difference in the trunk diameter. That is where the tree is grafted. Nurseries do this for many reasons, disease resistance, dwarfing (size), vigor and longevity in the tree life. If you contact your supplier that you purchased the tree from and give them the serial numbers from that yellow tag it would help us tell you why it is so tall. My guess is your Meyer is on volkamer, my trees on that rootstock are tall like yours. Also, Meyers are very light sensitive so taking it in and out of your house on warm and sunny days might actually be doing it more harm than good. I would keep it in a sunny window until you know the last frost has passed for the winter and then move it outside for the season.

Evan

Thank you! That's exactly the type of advice I was hoping to get... that maybe something I'm doing isn't right. Perhaps I could tell you about the rest of what I'm doing, and let me know if you think I'm doing something wrong! Since I brought the tree home, it was leaning to one side, and all the growth seems to be on that side too - leaving the other side "flat" (I tried to show this in another pic from a different angle). I read that you shouldn't stake trees, but rather encourage them to straighten out by turning the tree so that it grows towards the light. Well, I've had it turned to "encourage" it to straighten and grow towards the light pretty much since August, and I haven't noticed a difference. I've also been fertilizing every 3 months with the only citrus fertilizer I could find at my local Home Depot (picture attached) - but I've been breaking them in half (I was thinking that these were made to be put in the ground, where the nutrients would spread out over a larger area, so since mine was in such a small pot, I thought I should break it in half). I've been watering about 1/2 a gallon every week or 2 (I haven't been very systematic on when I water - I'm always worried that I'm over or under watering, but I don't know!)... some of the leaves are starting to turn a little yellow, and they have always been slightly curled. My mother suggested that I mist the leaves since it's inside, so I started doing that today. The tree produced lots of blossoms in the fall, and we now have 1 lemon growing as a result (which I heard that was normal for a tree this young, to only have 1 or 2 survive). It blossomed again a couple months ago, but none of them survived. There are 2 more buds getting ready to blossom now.

it's definitely leaning towards the light. What type of potting medium is it in? You should do a search on the forum here for gritty mix or 5-1-1 mix and follow the instructions for making your own soil. I'd get rid of the fertilizer spikes, Most container folks on the forum use dyna grow foliage pro at every watering 1/2 strength during the indoors season and full strength during the warm months. They also use Osmocote plus for the needed micro nutrients that the plant needs. You should be able to find both of those products online at Amazon. Don't mist your tree another myth that will not go away, my trees grow in the arid southern California desert and I have 8-10 months spells where my humidity is below 15% and I receive absolutely no rain and my trees flourish. I would repot your tree in late March-early April into the gritty or 5-1-1 mix and your tree should flourish. As for the lean, when you repot your tree you can straighten it out and loosely stake it, don't tie it tightly to the stake, leave some room for it to move around a little and grow. Hopefully this helps clear some stuff up for you.

Evan

Thank you so much!