Hi All, I bought this Slc. Charming Jewel 'Tristin' back in October. It's in a 2' pot. I haven't changed the medium as it looked perfectly healthy and happy when it arrived.
Now it is yellowing, but also has new growth. Can anyone tell me what is wrong?

I have it in medium/strong light (Maine...wintertime, so never truly strong strong light) and I allow it to dry between watering, but it's hard to tell with the medium. I suspect I'm overwatering, but not sure. I also mist daily.
Help!

kiki-do