Light
WATERING​
There are two ways to provide water: in the pot by watering and in the air by humidity. A mature cattleya should be allowed to dry out between watering. The weight of the pot is a good indicator of the plant’s need for water. Plants in active growth need more water than plants that are resting. Water temperature should feel tepid to the touch. Humidity levels should be between 50-70%. This can be provided by placing plants together or on gravel trays partially filled with water, so the plants stand above the water. Misting may be helpful in the morning.
FERTILIZER
TEMPERATURE
Cattleyas are most comfortable at 55-60 degrees at night and 70-85 degrees during the day. Higher daytime temps up to 95 degrees can be tolerated if humidity, air circulation, and shading are increased. All orchids benefit from good air circulation at all times as they grow in trees in nature.
Our Advice
It is necessary before the plant begins to grow over the edge of the pot. It is best to repot in the spring just before new growth starts. Bark usually breaks down in 2-3 years and should be replaced during repotting. Select a pot that will allow 2 years of growth before crowing happens.