Sunlight
All my cymbidiums are grown outdoors.  They are under 55% shade cloth with direct sunlight all day.  When in spike, the plants receive only early morning sun and are shaded for most of the day.

Water
All my cymbidiums are watered once a week during the winter, and 2-3 times a week during the rest of the year, depending on the temperature.  During hot and/or windy weather, the plants tend to dry out quicker and require watering every other day. 

All cymbidiums are watered by hand to ensure proper leeching.  This helps wash accumulated salt out of the pots which helps to prevent leaf tip burn.

Fertilizer
All my cymbidiums are fertilized with nuticote and supplemented with liquid fertilizer Dyna-Gro Liquid Grow (7-7-7).  I also alternate fertilizer applications with Dyna-Gro PRO-TeKT, which seems to add vigor to the plants and help reduce any outbreaks of fungus on the plants. 

Coconut husk based mix for cymbidium orchids

For the last two years I have been using small size coconut chips exclusively as my orchid mix and the plants have been growing extremely well.  No additional material is added and the plants are thriving.  In wetter and colder areas, additional perlite may be necessary to keep the pots from staying too wet, but it is not necessary in my climate.  Note: I used the larger coconut chips in the past and the plants seemed to retain too much water and did not grow well.

Seedlings just out of flask are planted in 98 count cell trays with 100% Coir.