| i checked their zone .... yesterday ... if memory serves... its 9 or 10 ... which translates to me as tropical rain forest type situation ... which means to me.. indoors.. in MI.. in winter.. your problem will probably be ambient humidity in winter .. and your forced air furnace .... we are lucky... in MI.. to keep our houses at 30 to 40% humidity .... NOT many outdoor plants.. can handle that ... and that is why we are limited to the generic houseplants we deal with ... sans a greenhouse or terrarium .... to keep it warm enough in the house .... you need to run the furnace.. and that reduces humidity .... or.. if you run the humidity high enough.. you will have a frozen waterfall on all your windows ... solve the humidity issue ... and you might succeed .... dropping all the leaves... means root rot... too much water in the soil .... or.. they were actually hit with frost before you brought them in... or they were going into dormancy.. and by bringing them in the house .. you disturbed whatever phase it was in .... or.. they just dont really like you and committed suicide ... i guess the only thing to do.. is keep it barely moist .. but not wet... and see if it reflushes... good luck ken PS: regardless of the type of heating you have.. the humidity issue remains ... as of course.. getting enough light indoors .... and the rest of the variables ... | 
