I too have some & have been wondering the same thing.
While looking on google I found this website, hope it helps:http://houseplants.about.com/od/growingorchidsinside/p/Cymbidiums.htm
Just Googled this site. Hope it helps.
I have to say I am a beginner, but have found that my orchids do really well where my african violets are. That being said, I also use fertilzer, but half strenght. And I water them once a week and with bright light and not direct..Other then that just be patient. They are sure fun to watch once they begin to bloom....good luck.
The Cymbidiums do need cold temps to set the buds. We live in Virginia and we leave ours
outside. They can take it down to 35 and prefer that for setting buds. Our plants bloom
every year. Feeding is also very important. But without the cold temps you won't get
any blooms. Good luck!
I'm not an expert on orchids but we put our mostly cymbidiums outside for the summer, under a shade tree and left them out until the fall nights were dipping into the 40 degrees F. We brought them in and put most of them in a glass enclosure with lights. The remaining 4 or 5 we put in a south window over the kitchen sink. We are zone 5/6 and do not get a lot of strong sun in the winter. All 4 are reblooming and hoping to get the Ladies Slipper to bloom.
I can't seem to get my photos to open up with my post. Any Help out there? Thanks. Figured it out.
The above little orchid is a pale lavender when it first opens and turns white with time.