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Originally Posted by estación seca
Your tap water should be good for most orchids. I would use that for most, and save the RO for slippers and cloud forest miniatures.
I recall there are great S. cernua threads here, with lots of photos. I would read those and see what successful people are doing. Then try to figure out whether there is anything different with your plant.
I've never grown it, but... does it really like 70%-80% humidity? I wonder about that.
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I know my tap is okay, as far as tap water goes but I prefer to use pure water. I feel I've gotten better results overall from when I used just tap, my few problem children excluded
. I've switch to rain water for the summer (barring a dry period) and we get a good storm at least once a week that allows me to collect ~20gal.
As for the cernua...
I honestly don't know what I have and have not read at this point. I saw your post a while back on what Alan Koch recommends (dry rest) while others I have read (may have even been another forum!) swear on keeping it moist. Andy's culture notes say to keep it moist and that it grows cool to warm, while others say warm to hot! Gah, so much info
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I didn't think the humidity would be an issue, from ISOPE cernua page:
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Mount this species on cork and give hot to warm temperatures, bright light, high humidity, and year round water with less in cooler weather.
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Hybrid Mode
