Question Question on night time temp

Berkshire Grower

New Member
Mar 13, 2021
8
15
Hi all - I’m going on flowering day 33 with my first grow - I’ve been keeping temperature in the space at 75 degrees but was wondering if it would be advantageous for the plants to let the nighttime temperature drop to say around 62 degrees - I do know it will be advantageous to my electric bill. Thanks
 

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Jason

Well-Known Member
Mar 16, 2019
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It's Just my opinion, I think the plants would appreciate and be fine if you went down to 68*. Much more not so sure they would be as comfortable although they would probably still be just fine. Typically if we are comfortable with the temps then the plants would be too. I've heard to try not to go over ten degree temp. changes. I just turned my grow room down to 72 from 75 for the same reason, $$$.
 

Colamaker

Well-Known Member
Oct 8, 2020
590
902
Just remember. If the plants are used to 75 from beginning night and day then a switch to lower Temps 3/4 way through can cause some stress and slow the flowering. If done from the beginning then plants will grow to that fluctuation in temp like normal. Not saying you can't but why mess with the flowering stage and disrupt its happiness.
 

Berkshire Grower

New Member
Mar 13, 2021
8
15
Just remember. If the plants are used to 75 from beginning night and day then a switch to lower Temps 3/4 way through can cause some stress and slow the flowering. If done from the beginning then plants will grow to that fluctuation in temp like normal. Not saying you can't but why mess with the flowering stage and disrupt its happiness.
Interesting - I did not know they can get acclimated to temperature fluctuations. Thanks
 

Berkshire Grower

New Member
Mar 13, 2021
8
15
It's Just my opinion, I think the plants would appreciate and be fine if you went down to 68*. Much more not so sure they would be as comfortable although they would probably still be just fine. Typically if we are comfortable with the temps then the plants would be too. I've heard to try not to go over ten degree temp. changes. I just turned my grow room down to 72 from 75 for the same reason, $$$.
I guess I’ll pay for the juice for another 5 or 6 weeks.
 

Varinaut

Active Member
Jun 14, 2020
54
111
Hi all - I’m going on flowering day 33 with my first grow - I’ve been keeping temperature in the space at 75 degrees but was wondering if it would be advantageous for the plants to let the nighttime temperature drop to say around 62 degrees - I do know it will be advantageous to my electric bill. Thanks

Strangely enough, research indicates ( https://hightimes.com/grow/grow-hack-day-and-night-growroom-temperatures/ ) optimal conditions would be the reverse of what you wish to do; lowering the daytime temps, primarily during the first 2 hrs of the day, results in tighter nodes and more efficient growth. That said, if you wan to lower night temps by 2-3'C you won't notice much. We're talking about fine tuning, so not that big a deal.
 

Berkshire Grower

New Member
Mar 13, 2021
8
15
Strangely enough, research indicates ( https://hightimes.com/grow/grow-hack-day-and-night-growroom-temperatures/ ) optimal conditions would be the reverse of what you wish to do; lowering the daytime temps, primarily during the first 2 hrs of the day, results in tighter nodes and more efficient growth. That said, if you wan to lower night temps by 2-3'C you won't notice much. We're talking about fine tuning, so not that big a deal.
Interesting - it seams more applicable during veg phase vs flower phase
 

Berkshire Grower

New Member
Mar 13, 2021
8
15
Well they are now headed for 8 weeks and they look ok stillI had introduce a dehumidifier a week ago because the plants started excreting a lotta moisture at night - outside of the pen the humidity was below 40% but went as high as 65 inside - the dehumidifier actually keeps the night temps above 67 so I haven’t used the heater. One of the plants is changing color which it’s suppose to do from what I’ve seen from the web.
 

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Alphatoy

Humble Helper
Oct 7, 2018
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2,460
🤠I seem to have no problem having day time 76 Degree in the day time and 70 at night mother nature changes her temperature all the time and everything always seems to come out right. :mask:
 


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