that your particular orchid has not read this culture sheet and will want to march to the beat of a different
drummer. This is often true when dealing with species. If you have questions about your specific plant,
feel free to ask us. Our email is firstname.lastname@example.org
Bright indirect light all day. An east or west window with early morning or late evening sun is ideal. A
south window is also ideal if it's shaded during the heat of the afternoon sun. Feel the leaves of your
plant when in direct sun and be sure they are not warm to the touch. If they are, back your plant away
from the window or provide some added protection with sheer curtains or plants that like the sun.
Most complex hybrids like to keep their roots moist but not wet. How often you water is dependent on how
quickly the potting mix dries out. Clay pots will dry out much faster than plastic or glazed ceramic pots.
When you water, completely drench the roots and allow the pot to drain. NEVER LET YOUR PLANT SIT
IN WATER!!! The pseudobulbs will shrivel if they are not receiving enough water. If this happens, lift the
plant out of its pot to make sure you have not rotted the roots by over-watering. This will also cause the
pseudobulbs to shrivel. If the roots are soft, brown and falling apart they have rotted. If they are white
and wiry, they are still alive and you can just increase the frequency of your watering.
Fertilizers and Supplements:
Once a month, fertilize with a "well balanced", "all-purpose" fertilizer at 1/2 strength. A fertilizer is
considered "All-Purpose" or "Well Balanced" when the three major components: Nitrogen, Phosphorous,
and Potassium are close to being equal. The three letters and numbers on the container of fertilizer
indicate this. For example: N-P-K / 20-20-20. Or 5-7-6 etc. We have found no difference from one
fertilizer to the next. We use fish emulsion, Protech, CalMag etc. just to make ourselves feel good about
our orchids. We're not sure it does anything for the plants, but we have customers that swear by these
You can use any 'Open' mix that allows good airflow around the roots. The more moisture retentive the
mix, the less you will have to water. We use a hardwood/coconut husk chunk based mix with spongerock
and charcoal to keep the mix open.
Most novice growers (and many experienced growers) hate to repot while their orchid is growing well, for
fear of losing the plant. This is the first and biggest mistake you can make. You must repot your orchid
BEFORE the potting mix begins to break down. When the potting mix rots, so do your orchid roots. You
will not know this until it's too late. Therefore we recommend you repot your orchid every 18 to 24
months. Pot each plant allowing for only 2 years growth in its new pot. NEVER OVERPOT.
Know when your plant produces new roots and repot just BEFORE they begin to emerge. This minimizes
damage to the new roots and allows the new roots to establish the plant in its new pot.
Repot a newly purchased orchid when you purchase it. If it's in bloom, repot when it's finished blooming.
This assures you that the plant is in a fresh mix that you are familiar with. Most plants come to market
just before they need repotting.
Oncidium hybrids cover a wide range of growing temperatures. Most enjoy temperatures that you find
comfortable, making them excellent house plants. Most will stay in bloom for weeks with cooler
temperatures extending the bloom time. Many of these hybrids are produced in Hawaii where
temperatures are consistently between 80 and 90 degrees.
A few words of wisdom:
1) Information provided here is a generalization and not specific to any species or hybrid.
2) Conditions suited to one orchid may not be the best for another even though they are in the same family.
3) What works for one person may not work for another, so try different ideas.
4) All orchids benefit from good air movement.
5) If it ain't broke, don't fix it.
6) You're not a real orchid grower unless you've killed your fair share of orchids.
|Cultural Information for Your Oncidium Type Orchids
Orchid Enterprise Inc.