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Humidity %

Vxlyps
Vxlypsstarted grow question 4 years ago
She started the flowering phase, I have to decrease the humidity? Up to now it has been around 60%. Thank you very much for your help :)
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sloppyjohn
sloppyjohnanswered grow question 4 years ago
The short answer: yes, 60% is fine. The long answer: it depends on air movement and air temperature. The higher the temperature, the higher the ideal humidity, and visa-versa. This is where Vapour Pressure Deficit (VPD) comes in. Essentially, VPD is a measurement of how much water the air can hold at the present conditions (temperature and humidity, as well as pressure/altitude). Use this link to see the best VPD for your conditions. Then, set your air conditioning/dehumidifier to whatever settings are convenient that line up with the correct VPD! https://www.dimluxlighting.com/knowledge/blog/vapor-pressure-deficit-the-ultimate-guide-to-vpd/
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Vxlyps
Vxlypsanswered grow question 4 years ago
Thank you very much!
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Fruitgrower
Fruitgroweranswered grow question 4 years ago
60% is OK for now, but in late flower you'll really need a dehumidifier to get that lowerđŸŒ±đŸ‘
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UKBUDDOCTOR
UKBUDDOCTORanswered grow question 4 years ago
Yes mid 50s will fine 👍
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GrowCN
GrowCNanswered grow question 4 years ago
Yes, I would lower the humidity. Tender young plants do really well in higher humidity but fruit & flower can have mildew and other disease problems if the humidity is high.
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Papathomas
Papathomasanswered grow question 4 years ago
If your temps are 70~75°F you are ok with 60%Rh. Keep your tent well ventilated
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