I’m cheating, @gjones. The cup is old, but I just bought the plant. We are having an unusually cold January, with temperatures down to minus 8 for several weeks now. Not a great start for my greenhouse citrus. Normally we just barely go below zero, and then just for a few days. Not like this, and I am so nervous I might have killed everything. There is some protection but still sub zero temps. Luckily the soil was quite dry and it hasn’t frozen, but no doubt there will be significant die back.
It seems a lot of people are experiencing unusual winters this year. Ours was unusually warm with many days above freezing but now it's turned really cold for the next 10 days. Hope your weather improves and hopefully your plants make it too.