Zygopetalum
I have to comment on the differences on the light recommendations for Zygopetalums in various orchid books. I have found recommendations ranging from low diffused light to bright light. Although I personally have better success using high light conditions, you may have to experiment to find the right light levels for your particular orchid. TEMPERATURE
If you live in a mild climate such as Southern California, these plants can be grown outdoors with your Cymbidiums with shade from the hot afternoon sun. They can tolerate temperatures from the high 90's F to lows in the 30's F for short periods. Ideally, they prefer warm days in the 70-80F range and cool nights of 50-60F.
WATERING
Zygopetalums love water when they are in active growth! Lots of water, but not wet feet (roots soaking in standing water). Water thoroughly at least once or even twice a week to keep them moist. The amount of water will depend on the temperature and media. If the leaf tips start to die back and turn black, this could be a sign of a heavy buildup of salts from the water and fertilizer. Zygopetalum roots are very sensitive to excessive salt buildup which will kill your plant if not corrected in time. To avoid this problem, be sure use enough water during watering to ensure that the water flows freely out of the pot. Doing this will wash out the excess salts in the media and prevent buildup in the first place. Cut back on the water in the winter but NEVER let your Zygopetalum to dry out. Your orchid will also enjoy overhead misting between watering as long as the leaves are dry by nightfall.
FERTILIZING:
Zygopetalums are moderate feeders. During the growing season (February-August)I suggest using a higher nitrogen fertilizer. Switch to a "Bloom Booster" high phosphorus fertilizer from August to October and then use a more balanced fertilizer in the wintertime. Some growers use slow release fertilizer such as Osmocote sprinkled on top of the potting mix. This is method is fine.... if you are watering with a sprinkler system. If you properly hand water, however, you most likely will wash the small granules right out of the pot. I would also suggest cutting the recommended Osmocote amount used to 1/2 the dosage. I prefer (and so do my orchids) a water-soluble fertilizer like Dyna-Gro or Jerry's Wonder Grow.
HUMIDITY:
A humidity level of at least 60% is
Latest Articles