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Phiaus – A terrestrial Orchid
Orchids most commonly raised by hobbyist are epiphyte, i.e., they grow on tree
branches and derive their moisture and nutrients from the air and rain
.. There are many families of terrestrial orchids,
i.e., plants that grow in the ground. Phiaus are one family of terrestrial
orchids. They can grow large and have brightly colored flowers. The Nun's Orchid, Phiaus tankerville, is beautiful
in its own right and the parent of many hybrids. Gastrophaius Dan Rosenberg, Phiaus Joan
Hart and Gastrophaius Micro Burst are some hybrids of Phiaus tankerville.[IMG]
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Care of these orchids is easy, but a
little extra attention to their needs will increase their beauty. They like light but avoid direct light,
a bright but shady area is best. They like a lot of water but not wet feet. They
do best in a perennial garden with daily watering and good drainage. They can easily get to 3-4 feet tall and
multiple spikes of 10-20 flowers each.
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When the flowers fade they require a little
special treatment. As new growth begins to emerge and you remove the dead flower
stalks, you should not stop but remove all the old growth. Wait until the new
growth is about six inches high and cut off all the old growth, even if the
leaves look good.[IMG]
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The old growth will never flower again.
All the flowers will come from the new growth.
The Phiaus in the middle looks good but really needs to be cut off. The
two on the sides have been cut about six weeks before the photo for comparison.[IMG]
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The photo on the right shows what is new growth and what needs to be cut.
The old growth is where the flowers grew this year. The two dark bulges in
the middle are last years growth that was cut allowing this years growth to
mature.
We cut the old growth just above the pseudobulb.
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Photo on right shows three old growths removed
The plant can be grown like this or it is a good
time to separate the plant into several new pots. This plant can be
divided in half or four separate plants.
For some additional fun try propagating your Phiaus from flower stem cuttings.
It is one of the few orchids that will reproduce this way. It is not
practical on a commercial scale as seldom do you get more than 10-15% to root.
But this is your hobby and if you think it will be fun to try go for it.
Just take the flower stems and cut it into pieces with a viable node in each
cutting. Place them on a moist bed of sphagnum or damp sand and see what
happens.
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