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What air temp and RH should i be trying to acheive for flowering?
Theiastarted grow question 4 years ago
What should i be trying to acheive with RH and air temp for flower stage. I recently was subject to some intense heat and RH shot up to 92%. I have ordered a De humidifier to combat that and i have a fairly decent control over the air temps but i am not sure what i am trying for.
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Setup. Ventilation
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OimRauschanswered grow question 4 years ago
Hey Pal,
In flowering I try to bring RH between 40-50% and the Temp. not over 27°C.
But get a VPD Chart, you see quite nicely the relation between Temp and RH.
This is worth a peek!
https://www.alchimiaweb.com/blogen/vapor-pressure-deficit-cannabis-cultivation/
Hope this helps a bit.
If you wanna talk more, just shoot a pm and I'll answer as soon as I can.
Cheerz✌️
OimRausch
Theiaanswered grow question 4 years ago
Thanks, wow so quick with the answers. Love this site for that.
@OimRausch, thank you very much. I do prefer to know why i am looking to get those readings and their relationships so the link you sent i found very useful.. This is just like being back at school :) i love learning so thanks for sharing.
@The8thChevron The mould is exactlly what i am worried about !! i can see the plant is fine in how she looks to the eye with a few days of high RH/temps but like i said i want to know whats best and why..lol
Happy sundays all..
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The8thChevronanswered grow question 4 years ago
40-50% RH
77°F/25°C
Specific strains will prefer slightly different conditions. Hazes, for example, tend to like it a bit warmer.
A day at a high RH or temp won't kill you. Much more than that, you risk mold or wilting.
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