How hot is to hot in Flower

[Miraculous Meds]

I am not a growing expert, I am an electronics expert. Please accept my comments with that in mind.


1. You lose smell.
2. You lose taste.
3. You are greatly increasing you risk of mites and some other night-active pests because these explode around 85F (at least they have for me).
4. I think the plants like a good temperature swing and greater than 80F at night means you have to run 90F or better in the day.
5. If the lowest temp you every get is 80F or higher, and you have any temp problem in the day, then 80F at night might turn into min of 85F or more at night and then you are pushing things too much (IMO) with a night temp that high.

I think there are more reasons. I am not trying to argue with you, those are my opinions and I am trying to help. Peace!

No arguments intended either. just trying to learn and get the facts straight. I think ur confusing high temps and taste/aroma loss which we both agree on, with hi night time temps. What im saying is that if ur running 90f during the day, no matter what,the plant will grow better if u keep the night time temp as close as possible.

 

[OldGuyInOregon]

No arguments intended either. just trying to learn and get the facts straight. I think ur confusing high temps and taste/aroma loss which we both agree on, with hi night time temps. What im saying is that if ur running 90f during the day, no matter what,the plant will grow better if u keep the night time temp as close as possible.

Maybe, in my environment it seems like my plants have less odor when I run hot either in the day or night. But they do best cooler than average 75 day 60-65F at night so maybe its a strain dependent thing. My plants are different than average so maybe not a good basis for comparison. Also, during veg for me there is no night so I keep temps even 75F 24x7.

 

[mowood3479]

I tried running rooms at 85 canopy temp w/ co2 @1200 for several years.
I was going off info I got off the forums.
I've had more resinous and terpy flowers with slightly better yields running canopy temps at 78 with co2 @1200. That has been my experience, it is anecdotal at best, but if I can't keep a flower room lower than 82 deg at the canopy I won't even grow... Hence my summer vacation July and August break.

 

[mowood3479]

Something I've more recently learned is the correlation between temp and relative humidity. The higher the temps the higher the rh needs to be to not get vpd issues.
Perhaps running canopy temps at 85 with 75% rh and 1200 ppm co2 would be optimal... I haven't done it myself but djm has a pretty cool thread and that's what he runs his rooms at (if I recall correctly)

 

[WeetisPotPie]

I've run for many summers where my grow has reached 90+ never had any issues, didn't notice any difference in taste or smell but that could be me, I get immune to it.
I use C02 and don't have an a/c or water chiller.
Don't know what your medium is.
My suggestion is to go over and read this thread by a very well respected member DJM https://www.icmag.com/ic/showthread.php?t=300255
He runs in coco, but the thread is very useful when it come to environment.
I run rdwc and I've learned a lot from it.
He runs high heat and high humidity and has astounding results.
And water chillers can be a super power drain, just an fyi, they do work though.
Good luck.