This group includes thin-leaved oncidiums, the tiny equitant oncidiums and the butterfly types. Brassias, commonly called spider orchids, are also included. Equitants and the butterfly types are grown like Phalaenopsis, except in clay pots. The following is the
care for the thin-leaved oncidiums and brassias.
Light: Bright, filtered sunlight similar to the light required for
cattleyas.
Temperature: Nights above 50* F. Day temperatures below 90 to 95 * F. Remember to increase water, fertilizer and air circulation during high temperatures. You may also have to increase shading during the summer months.
Water: Water thoroughly and allow to dry between watering.
Fertilizer: Fertilize during the warmer months with any good orchid fertilizer. “Weekly-weakly” with a 1/4 strength solution. Fertilize on a regular basis. Less fertilizer during the cooler winter months. You may supplement with a time release fertilizer (Nutricote).
Potting: Repot when the plant has outgrown the pot or the media has broken down.