Night temperature go to 11c. 51f

Logan Burke

Logan Burke

Well-Known Member
Cooler temps can inhibit P uptake...which is why cooler temps tend to bring out a pretty purple color among leaves and buds. Worst case scenario, it may slow your growth down a little bit, but at those temps I doubt you'll run into any serious issues with those temps. Low 40F is where I've personally begun to run into issues where the plants have a tougher time to recover. If you can keep the plant's roots warm by insulating the plant's root zone I've heard can help, although I've never tried it myself...not quite sure how you would honestly.
 
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pollen205

Well-Known Member
Thank you guys you really calm me down..

Can I please ask for help in hummidity..
I just flip and have 80 % night and 60-65 %
I will buy dehumidifier in 2 weeks..dont have budget till then
I have really good ventilation in tent...extractor Fan and clip Fan that blow direct on Plant.
So is powdery mildew danger for me now with that RH
Still dont see white hair so I cant get boytritis or bud root??...Is this right??
 
Logan Burke

Logan Burke

Well-Known Member
pollen205 said:
Thank you guys you really calm me down..

Can I please ask for help in hummidity..
I just flip and have 80 % night and 60-65 %
I will buy dehumidifier in 2 weeks..dont have budget till then
I have really good ventilation in tent...extractor Fan and clip Fan that blow direct on Plant.
So is powdery mildew danger for me now with that RH
Still dont see white hair so I cant get boytritis or bud root??...Is this right??
Click to expand...
You should be just fine as long as you have adequate ventilation. You can get bud rot at any stage of flowering, however the earlier the stage of flowering is the less likely it is to happen as the buds have yet to become dense and clustered among one another, inhibiting airflow. Keeping an oscilating fan going 24/7 can be a pretty big help, as long as you don't let it beat your plants up or anything, just a light breeze to make them 'flicker' or shake a bit. Your plants should be ok until you can get the dehumidifier! If you were in late flower, I might be a little more concerned.
*EDIT* If I'm right, for cannabis, you want the entire volume of your space's air to be recirculated at least once every minute. This can be calculated pretty easy once you convert your grow space into cubic feet, so you know how many CFM's your fan needs to be.
 
SatIndy

SatIndy

Well-Known Member
Logan Burke said:
You should be just fine as long as you have adequate ventilation. You can get bud rot at any stage of flowering, however the earlier the stage of flowering is the less likely it is to happen as the buds have yet to become dense and clustered among one another, inhibiting airflow. Keeping an oscilating fan going 24/7 can be a pretty big help, as long as you don't let it beat your plants up or anything, just a light breeze to make them 'flicker' or shake a bit. Your plants should be ok until you can get the dehumidifier! If you were in late flower, I might be a little more concerned.
*EDIT* If I'm right, for cannabis, you want the entire volume of your space's air to be recirculated at least once every minute. This can be calculated pretty easy once you convert your grow space into cubic feet, so you know how many CFM's your fan needs to be.
Click to expand...
Hi :) just wondering where a small oscillating fan should be directed? On the floor or overhead? Thnx
 
Logan Burke

Logan Burke

Well-Known Member
SatIndy said:
Hi :) just wondering where a small oscillating fan should be directed? On the floor or overhead? Thnx
Click to expand...
Overhead :) I try to keep an oscilating Lasko fan blowing directly over top the canopy, while still allowing it to hit the top of the plants enough to make them 'flicker' or shake a bit.
*Edit* It doesn't hurt to have a fan blowing lower down towards the base of the plant, but definitely not as important as one blowing over top preventing heat spots.
 
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