If my leaves looked like yours, I would say I was over fertilizing; the other issue, is you being in Utah, you probably recently moved them indoors, so they are adjusting to the difference in sunlight, humidity, and temperature. They will likely recover.

Did you at anytime let the mix get too dry?

It looks like at one point it was left too dry and dropped green leaves.
It is almost impossible to over water in the 5.1.1 mix if made correctly an especially in an area where there is abundant sunshine.
Your leaves will most likely display yellowing and then drop if over watering was the culprit.

Mike

do you keep it in a sunny window. My first thought was winter leaf drop.

mike

Thanks everyone,
I have it in a south facing sunny window and the room seems to get plenty of light. I have a Meyer Lemon from a local Lowes a few weeks ago and it is doing just fine. However, the leaves look a little yellow. I don't think they took very good care of it :( I also have a smaller citrus that is in fact GROWING new leaves at this time and it is a year old and survived last winter. The four winds tree seems like it is just going through an adjustment from sunny California but what do I know? Here are a few pics of my other two trees. Thanks Johnmerr, meyermike, and mksmth. I appreciate your expertise and have read quite a few of your previous posts. All of you seem very knowledgeable when it comes to citrus. I will monitor the watering and see how it does in a few weeks. How often do you water? I think once a week should be fine I'll use a good ol shish kabob to check the moisture.
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