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Cattleyas need a significant amount of light to maintain healthy new growth and vigourous blooms. In the home cattleyas prefer an East or West window. In a greenhouse or outdoor situation cattleyas need 40-50% full sun. Cattleyas should be light green in color. Dark rich green is a sign of insufficient light.
Temperature:
Mature cattleyas can tolerate a wide range of temperatures varing from 50 to 100. Idealy they will thrivewith 75 to 90 daytime temperatures. They are also favorable to a 10 drop at night to set their flower buds.
Water:
Mature plants like tp dry out from one watering to the next. Recently divided plants or young plants need more constant water, never allowing they to dry completely out for any period of time.
Humidity:
Cattleyas will perform the best with 50 % humidity, weather they are inside or outside.
You can increase humidity in the home by misting the leaves in the morning, giving them ample time to dry before nightfall. In you home you can also add a humidity tray to increase your level of humidity. With increased humidity remember to keep air constantly moving.
Fertilizer:
Cattleyas need a well balanced fertilizer, such as 20-20-20, during the warmer months for healthy new growth. Going into the cooler months they need a high phosphorus to promote healthy blooms. Fertilizer should be applied ½ strength with every watering. Leaching with clear water should be done every 6 weeks to avoids soluable salt build up.
Potting:
Cattleyas should be repotted every 1-2 years. They should be potted using the “off mix” which will allow for ample drainage. When repotting give new growth adequate space to grow for the next growing season. Never repot when in bloom.
Copyright © 2008 Orchid Doctor - All rights reserved.
Devon, PA 19333
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