Temp vs Humidity

wattsup2008

Active Member
my day temp. is 77 F and night temp is 64 F
then what shouild be my respective R.H. levels, ya no relative humidity levels at day and at nite
 
i heard you wanna drop the humidity levels to 25-30rh when in flowering faze. This way the plants think they need to add more resin glands to protect the plants leaves, buds, etc.. More resin ='s more high...up to you tho.
PUFF PUFF PASS!
 
i heard you wanna drop the humidity levels to 25-30rh when in flowering faze. This way the plants think they need to add more resin glands to protect the plants leaves, buds, etc.. More resin ='s more high...up to you tho.
PUFF PUFF PASS!

I have never heard of this anywhere. Where did you hear this? It is agreed on by the experts that 40-50% is optimum. If you go too low, you risk spider mite infestation. FAQ + Google = :idea: = :weed: = bongsmilie...ya dig???
 
"Cannabis seems to respond best through a range of 40 to 80 percent relative humidity." (Marijuana Grower's Guide. Mel Frank. pg. 123)
 
My humidity is always 20%...and right now my temps are getting up in the 90's high and my lows are 80.
 
My humidity is always 20%...and right now my temps are getting up in the 90's high and my lows are 80.

“Marijuana will grow fine in temperatures from 60-90 degrees Fahrenheit, but keeping it in the mid to late 70’s will encourage faster growth than either extreme.” (Ready, Set, Grow – High Times Grow DVD).

“…the concentration of THC was 18 times higher at 75-75 degrees F than at 90-54 degrees F.” (Mel Frank. Marijuana Growers Guide. p 120)
(the above sets of numbers are day and night temps).

I'd say you're losing, Dude.
 
Yea but I cant control the heat. I was thinking this will be my last grow befor summer hits.....Didn't know if I should even try to grow when the temps hit in the hundreds. If Plants WILL grow and not be a waste of time I would do it.

My 2nd link in my signature is my current grow...
 
Yea but I cant control the heat. I was thinking this will be my last grow befor summer hits.....Didn't know if I should even try to grow when the temps hit in the hundreds. If Plants WILL grow and not be a waste of time I would do it.

My 2nd link in my signature is my current grow...

AC unit...Walmart...$89.00!! :weed: :peace:
(if you have a window :mrgreen:)
 
“Marijuana will grow fine in temperatures from 60-90 degrees Fahrenheit, but keeping it in the mid to late 70’s will encourage faster growth than either extreme.” (Ready, Set, Grow – High Times Grow DVD).

“…the concentration of THC was 18 times higher at 75-75 degrees F than at 90-54 degrees F.” (Mel Frank. Marijuana Growers Guide. p 120)
(the above sets of numbers are day and night temps).

I'd say you're losing, Dude.

whats green and slimmy and smells like PORK????
 
:confused: :confused: :confused: your point? kinda screwin' up this guys thread, don't ya think? :idea:

:joint: smoke somethin', dude!

Your right---I apologize----Sorry-------smoked some crazy shit at the time of post---seemed funny at the time(all your book quotes in the thread) just thought i'd throw in a little joke to lighten things up a bit.

Keep your veg cycle as close to 40% and your temp as close to 78 deg unless your are supplementing co2/your plants can handle a higher temp up to 84 deg ideal with supplemental co2. keep you flowering room the same.
 
Your right---I apologize----Sorry-------smoked some crazy shit at the time of post---seemed funny at the time(all your book quotes in the thread) just thought i'd throw in a little joke to lighten things up a bit.

Keep your veg cycle as close to 40% and your temp as close to 78 deg unless your are supplementing co2/your plants can handle a higher temp up to 84 deg ideal with supplemental co2. keep you flowering room the same.

you're cool as hell DocVanDank :joint:, but i have to disagree with ya on one important point. that 40% RH value you quoted as being for the veg cycle is actually the number you shoot for during flowering (40-50%). check it out. for the veg cycle you want about 75%, definitely over 60.

keep smoking that killa! bongsmilie
 
you guys are fools....40 50 humidity during veg but the last month of flower you want to lower your humidity to 20 to prevent mold...idiots and NO a plant flowering in 75 degrees vs one thats in 90 degrees would not have 18 times more thc.
 
you guys are fools....40 50 humidity during veg but the last month of flower you want to lower your humidity to 20 to prevent mold...idiots and NO a plant flowering in 75 degrees vs one thats in 90 degrees would not have 18 times more thc.

You should be ashamed of yourself for that post. :lol: I would love to see you grow under these circumstances. :lol::lol::lol::lol::lol:
 
for veg you want a high humidity. i can get mine as high as 80% naturally. flower the lower the better. flower i run 87 degrees with my hum at 32%. most of the time my hum. is 26%. all naturally. this is how to get the dense hard buds.
 
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