Quote:
Originally Posted by D_novice
Do you (or did you at one time) measure water temp with a thermometer? Is there a more specific range than "warm"? I can imagine that after years of experience you can just feel the water to know, or that you know your water supply / greenhouse well enough to tell.
I would like some guidance on this, for Phals (my small collection is getting smaller and is now skewed towards hybrids, but I still think I could improve my results by upping air and water temps for these plants). Though probably many of my plants would appreciate it.
I collect rainwater which can stay pretty chilly; now currently when it's raining the water from the tap is also pretty darn cold. So I need to adjust it and knowing where it should be would help.
thanks in advance
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Sorry, I just saw this for the first time. I wouldn't use water that's too different in temperature from the air temperature. A lot of people's water comes out around 50 F / 10C. I that's too cold for many warm growers. Air temperature for Phals? The higher the better, if it's at least somewhat humid. If days are considerably warmer, the ones with big white to pink flowers tolerate temperatures into the 60s F or somewhat lower, overnight, for a while, but they won't like it. The ones with yellow-red star-shaped flowers need to be warmer than that at night. Daytime temperatures for Phals are no problem into the low 100s F / 38-40 C if it's humid and they're watered.
The bottom line is Phals are happier at the higher end of the temperature range. People successfully grow them in houses in the low 70s F / 21-24C but sometimes they just die for no apparent reason.
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