Kaffir Lime Tree yellowing
Please see the attached photo. The tree has always done well until the move to NC. It comes indoors during cold months only. Started to yellow before the cold snaps. Read that it may need nitrogen but I'm not sure. They recommended wonder grow or superthrive. It went through a very hot summer. Don't think it's root rot as drainage is very good, maybe too good. Not sure what to do to save my great tree. Any help would be much appreciated.