Quote:
Originally Posted by Ray
I'm sorry, but there are some significant points being missed in this discussion.
"Semi-hydroponics" does not define your entire set of conditions, and many of them play a far more significant role in orchid-growing success. As those are more variable than clay balls and constant moisture, I'd suggest that they are playing a bigger role in individuals' success or failure to grow a type of plant.
There are lots of folks successfully growing dendrobiums in S/H culture, and from my own perspective, oncidium intergenerics grow better that way than any other.
About the only plants that I have not heard of anyone growing them successfully in semi-hydroponics are tolumnias.
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Ray;
You're right, I should have given more parameters.
Okay all, here's the challenge.
In addition to the S/H info provided at the start of this thread...
The plants are in my east facing bathroom window. Temps are upper 60's during the day and mid 60's at night during the winter and ambient air temps during the summer when I keep the window open. The plants get about 4-5 hours of sun each morning.
I don't know what the humidity parameters are. They are typical closed-house winter levels during the cold months, most likely in the 30-40 percent range, and typical outdoor humidty levels during the warmer months when I have the window open.
I know the S/H pots are over sized for the plants. I have them in quart sized deli containers slipped into a second quart container so I can raise the reservoir level due to the size of the Keikis.
Finally, the mother plants these came from are also in east facing windows near the kitchen directly below my bathroom. The mother plants are growing in fir bark and coir chunk, also fertilized with the same MSU fertilizer and otherwise treated exactly the same. As larger plants they are performing much better than the Keikis in S/H.
Cheers.
Jim
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