| Dendrobium Culture notes
Dendrobium is a diverse genus of orchids with different cultural needs. Many go through a growth phase and a rest phase during the course of one year, and must be given water and temperature to match these growth and rest periods. Flowers can last one day to many weeks, depending on the type.
Light: Strong light is important, especially when growth is maturing. Give bright light; some sun. In the home; an east, shaded south, or west window. In the greenhouse, 25% to 50% full sun. Less light is needed when plants are resting.
Temperature: Temperature needs vary widely. It is best to follow the plants' natural requirements. Provide night temperatures of 45 to 60 degrees; and days of 65 to 95 degrees.
Water: When plants are growing, water just when becoming dry. Some types need severe drying while resting. Mist in home in the morning if air is dry. A humidity of 40% to 60% is optimum.
Fertilizer: Must be provided on a regular basis since potting media have little. In active plant growth, apply 30-10-10 at recommended rates. Reduce fertilizer when growth is completed. A bloom booster may encourage flowering. More frequent fertilizing is good under high temperature and light conditions. |