Ursula said:Oh good! This one is solved! 
I have a really good, well established plant of Den loddigesii, it produced one bloom in all these years. No matter where I keep it, it just grows over the Summer / goes somewhat dormant during the indoor season and doesn't bloom. Any ideas, Melissa and Glen?
Okay for Den loddigesii, you have to treat it like the habitat where it grows. It is picky. It goes dormant in the fall/winter with very little watering (we just mist a little bit every other day). It must have a winter cool snap but no lower than 45 (and it should be pretty dry during that time to avoid rot or cold damage). Assuming it will bloom in the spring, you start to water slightly more only when you see new growth in the spring. Then it should bloom.
Now, to make sure you create new growth you must give it a monsoon season with lots of watering and light (2500 lumens - just under Cattleya type light). So it should get bright open sun (not direct) and warm humidity for 2 months at least with daily drenching (it really should be mounted) temps should go up to the 80s with HIGH humidity. In the summer, this orchid gets 12" per month of rain on average. We drench ours twice a day in the summer and if really hot a third time in the evening. Ours is mounted with only a small amount of moss. It is about 3' long on a 6" wide mount. HUGE.
