* There should be
good air movement to keep the
leaves cool. Warmer weather often means higher temperatures
so increase air movement as well.
*In cool humid damp conditions(winter) its
very important to keep air moving to avoid fungal or bacterial
infections which can decimate plants in a matter of a few
days.
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TEMPERATURE
AND VENTILATION Phalaenopsis orchids are considered warm
growing orchids. They need night-time temperature lows of about 65F
(18C) and tolerate day-time temperature highs of about 85F (29C). A few
degrees divergence from these temperatures is
tolerated.
Orchids need at least a 10 degree difference between
night-time lows and day-time highs to thrive. Why? Because orchids synthesize their
food through photosynthesis, during the day. If night temperatures are too high,
they end up burning up this food--they need lower temperatures at night in to save
their food, which they can then use to flower. This night time temperature drop is
required by many moth orchids if they are to bloom. Don't worry, there are some
easy tricks to give them the nighttime temperatures that they need to
flower.
A drop in night temperatures (to about 55-60) for a month,
especially during the fall or spring will induce flowering in season. A
Wireless Min/Max Thermometer can help you keep track of changes in
temperature.
Make sure that there is always adequate ventilation and
air circulation, particularly in the winter, or during very humid conditions, in
order to avoid fungal and bacterial disease. However, do not subject plants to
blasts of cold or hot air. An oscillating fan that moves air constantly at low
speed is extremely beneficial.
If your orchid does
not bloom.
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