Water thoroughly by by flooding or dipping and allow to dry significantly before watering again. The frequency of watering will depend on soil medium, it's condition, the type of pot, humidity, and other factors. Watering will be required about once a week for an average plastic pot and bark medium. Bark will hold water longer as it begins to break down. Fertilize with orchid food according to package instructions during the growing season.
Cymbidiums prefer slightly cooler temperatures.
Pot size is chosen to fit the root system. Soak bagged bark in water a day or two before repotting. Repotted plants may require more frequent watering until the bark softens and starts to retain moisture. Check thbe individual label for specifics.