|
|
|
Introduction
to Orchids
The
orchid family, orchidaceae, is the second largest
among all flowering plants. The orchid family
has about 600-800 genera and 25,000 to 35,000
species and over time new species are being
discovered occasionally.
Orchids
occur in most parts of the world, growing in
a diverse range of habitats and terrains. They
grow on trees as epiphytes, on forest floor
as terrestrial and sometimes in-between rock
crevices as lithophytes.
Orchids
we see usually appear in 2 different growth
structures, monopodial and sympodial.
Monopodial
orchids usually have a main stem with new leaves
emerging continuously from the crown and roots
from the side for anchorage and to retrieve
nutrients and water. They also produce offshoots
from the side of the main stem which sometimes
people trim off to propagate into a new plant.
Sympodial
orchids usually have a succession of pseudobulbs,
stem that looks like a bulb, growing in a chain.
New shoots and roots will emerge from base and
sometimes producing long rhizome which spaces
up the pseudobulbs. They can be propagated by
cutting the rhizome.
|
|
|
|
Lighting
Intensity & Duration
By
providing the correct amount of light and duration
may induce flowering and promotes healthier
growth, but that requires experience. Orchids
are adaptable plants and sometimes they adapt
to new environments over time hence it is important
to not shift them around too much. Before finding
a spot for your orchids, you should understand
what they like. Grow your orchids in places
that resemble their natural habitats and they
should do well.
In
general, there are sun-loving orchids which
usually grow on branches in the canopy where
they receive optimum light and rain. Sun-loving
orchid genera include Vanda, Dendrobium and
Grammatophyllum which can take about 70% to
90% light from the sun for duration of 8 to
10 hours a day. And there are also shade-loving
orchids that grow under trees or on forest floors
that receive limited light, such genera include
Macodes, Paphiopedilums, Phalaenopsis and Bulbophyllum
which prefers 30 to 60% light for about 4 -
6 hours a day. Growers achieve the ideal light
intensity by using shade nets, one layer for
sun-loving orchids and 2-3 layers for shade
loving orchids.
In
our modern cities, many live in apartments that
only receive half-day sun or even no sun at
all. In such cases, it would be advisable for
growers to grow shade-loving orchids near windows.
If there are no light at all, growers can provide
alternate light source by using a florescent
light. As for people who have open garden that
get exposed to the full sun for the whole day,
they would have more freedom to keep both sun-loving
and shade-loving orchids.
|
|
Watering
and Ventilation
Orchids
are subjected to sesonal changes which makes
watering tricky. Study on your orchid's natural
season and control watering according to the
seasonal change.
In
general, water your orchids when there is no
direct sunlight around because the water droplets
may act as a magnifying glass that focus the
sun's rays and may scotch the leaves. The best
time to water is early morning or during the
evening when it is windy.
While
watering, it is best to water only the roots
or onto the potting mix. Unless you have natural
or artificial ventilation, try to not let water
collect in the crown as it may rot your orchids.
Artificial
ventilation is achieved with the help of a modern
electric fan or an industrial ventilation machine.
These equipments are only useful in a greenhouse
or in places without wind. It may be unnecessary
if you place your plants outdoors where they
receive good ventilation. Find a windy spot
with bright light and exposed to rain, this
might be the best conditions for most orchids.
|
 |
|
|
Potting and Mounting
Orchids
occurring in many different terrains and habitats
resulted in the use of a variety of growing
media and methods used by growers.
Orchids
that grow on trees as epiphytes generally require
a well draining and coarse growing media such
as charcoal, bricks, clay chips, diatomite and
many more. The purpose of having coarse growing
media is to allow water to drain away quickly
to prevent the roots from rotting.
Fern
bark slabs are also commonly used to grow many
epiphytes.
|
|
~
Deflasking ~
|
|
~ Growing Seedlings ~ |
| |
 |
Step
1 - Gather items
Gather
all the necessary tools you need to begin growing
seedlings.
1.
Thumbpots or Compots
2.
Growing media: Clean Sphagnum moss
3.
Orchid seedlings
|
| |
|
| |
 |
Step
2 - Make a sphagnum ball
|
| |
|
| |
 |
Step
3 - Place the roots on the moss
|
| |
|
| |
 |
Step
4 - Wrap them up
|
| |
|
| |
 |
Step
5 - Put it in a thumb pot
|
|
| |
|
| |
|