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Light: Light requirements vary by species for dendrobium. Most require bright light to partial sun. An east window in adequate inside the home for most dendrobiums. Outside most prefer morning sun for several hours. In western exposure light shade should be provided.
Temperature: Most dendrobiums prefer a warmer environment, not dropping below 55 degrees. Again, this will vary slightly be species. Most dendrobiums will actively push out new growth when temperatures are consistently over 70 degrees.
Water: Dendrobiums require more water during their growing season, never allowing the roots to dry out completely. Most dendrobiums need very little water if they are not actively growing. Deciduous dendrobiums are one type that likes very little water after it drops its leaves. When it starts to show signs of active growth it will need more water.
Humidity: 50% humidity is adequate for most dendrobiums to thrive. This can be achieved be adding a humidity tray. Air circulation is important with increased humidity. Misting is not recommended for dendrobiums to increase humidity.
Fertilizer: Use a well balanced fertilizer such as 20-20-20 when actively growing. A bloom formula such as 6-30-30 should be used going into the cooler months to promote flowering. Fertilizer should be applied at ½ strength with every watering. Leaching with clear water should be done one a month.
Potting: Dendrodiums should be repotted every 1-2 years. A medium grade fir bark should be used such as the off mix. Sphagnum can be added for water retention if needed. Plants should be centered in the middle of the pot.
Copyright © 2008 Orchid Doctor - All rights reserved.
Devon, PA 19333
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