The luminosity is an important factor in the health of the orchids,
but they usually do not tolerate direct exposition to the sun.
In general, orchids do well in half-shadow: under trees, under
wooden stripes or even in varandas or window of an apartment where
direct sun does not happen.
The first step for giving the exact amount of light for your plant
is to identify the species or genus. Then you may choose the best
place for putting it.
The amount of light that each species need differs from plant
to plant. Dendrobium, for instance , likes some 60% of light and
even some weak sun on the first morning hours. Others, like Paphiopedilum,
Miltonia Colombiana and several micro-orchids can not stand high
temperatures and sunlight, therefore should always be on shade
Orchids may grow on shadow, half-shadow, strong sun-light and
full sun exposure (some). Should have bright green, healthy leaves.
Dark green leaves indicate that a plant is getting insufficient
light, and yellowish-green or red leaves indicate that a plant
is getting too much light.
outside under the shade of tall trees during the summer months
is very beneficial.
Depending on the orchid species, they can be grown in shade or
half shade or can get plenty of light but, even though there are
a few exceptions. Usually they should not receive direct sunlight
except for the the first sun rays in the morning.
gets filtered sunlight: in most cases the "half-shadow"
is the ideal condition for growing orchids