Light:

Bright light but not hot direct sunlight. Morning or afternoon sun is okay. 

Temperature:

Minimum nighttime temperatures above 60° F with a 10 degree increase in temperature during the day is helpful.

Humidity:

Preferably 50% or higher; put orchids on a humidity tray or a tray with pebbles and mist them daily to help increase humidity.

Watering:

Bring potting medium to almost dryness in between waterings. Then thoroughly saturate the moss.  Test by touching the medium.  Do not let it become bone dry and do not let them sit in moisture.

Fertilizer:

During their growing season, periodically fertilize with ½ tsp/gallon every four weeks.  Do not over fertilize, the roots are sensitive to too much feed.

Pruning:

Cut off old flower spikes after flowering is done.

Comments:

Repot with fresh medium when orchids require larger pots.  When repotting clean the healthy roots, remove the dead or damaged roots and place in a medium of sphagnum moss or orchid mix.