Help!!! My 'heuschkeliana' has some leaves that have turned a mottled yellow (see pics). It is in my master bath that gets southern exposure. It sat in the window when it was younger but now sits to the side. Newer leaves are green only. The temp in winter is 68 and about 40% humidity...unless the shower has just been used. I hope I'm not over-watering.
Linda, I suspect that your plant could be too cool combined with a little too much watering. I believe that it would quickly turn around if you could find a place a little warmer with more humidity. I know that can sometimes be a challenge. I grow heuschkeliana under lights where it has 85° days with a humidity level of 60-70%. Under those conditions it flourishes. If you can get it warm enough, it would prefer to be on the damp side, but if you can't, watch carefully not to over water.
Hoya_24 - I've taken your advice and moved it to a warmer location. I've added additional humidity with a humidity tray and daily misting. The new exposure is also a little brighter.
Thanks also for the watering tip. Now I'll cross my fingers.