imthemedic
Well-Known Member
its 90-100 out side here in KY regulary why is 80 to hot in a grow room
Why is 80 degrees to hot if its 90 out side?
- Thread starter imthemedic
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1puff2puff3puff
Well-Known Member
Nothing higher than about 85 if you have heat problems, i stay between 77-80 lights off and 82-85 lights on...
GreenLight
Venus
Outside has free access to Co2, they can survive in all sorts of temps but that doesnt mean they like it
Daytime conditions should be 70-80 degrees without co2, 80-90 degrees with co2 until the last two weeks when daytime temps should be kept between 70-80 and co2 can be reduced to adjust for the lower metabolism. Night temperatures should be kept above 60 degrees to prevent stress. It is preferable during flowering to have a night temperature drop of 10-20 degrees to stimulate flowering hormones and reduce stem elongation.
Daytime conditions should be 70-80 degrees without co2, 80-90 degrees with co2 until the last two weeks when daytime temps should be kept between 70-80 and co2 can be reduced to adjust for the lower metabolism. Night temperatures should be kept above 60 degrees to prevent stress. It is preferable during flowering to have a night temperature drop of 10-20 degrees to stimulate flowering hormones and reduce stem elongation.
valuablevariable
Well-Known Member
80 is not worth thinking about. Ive grown in constant 90
Smoke2Live420
New Member
if the temps reach more than 85 degrees the plant dont grow at all...that is when u find a place with some shade
whatapothead
Well-Known Member
"if the temps reach more than 85 degrees the plant dont grow at all...that is when u find a place with some shade"
lol ok i think hes joking... mine have been 80-98* and they have grown each day. they don't go over 84* now but it was when my venting was bad... but they still grew
lol ok i think hes joking... mine have been 80-98* and they have grown each day. they don't go over 84* now but it was when my venting was bad... but they still grew
WHO DAT1
Active Member
I have two 300 W LEDs & a 450 Watt LED. In my 2 x 4 grow tent. Temperatures are staying around 77 to 79°. I Changed the 450w and put in a 600w Temperatures are now around 85 to 89° My plants are standing up tall and strong. To be completely honest I see they're doing better in the warmer temperatures. This is my setup, I have two 4 inch booster fans at the bottom of my tent & two 8 inch Booster fans at the very top One coolmist humidifier in the middle.I Built a 2 foot table to fit inside the tent So my humidifier it's right underneath I cut a hole in the middle where the fan blows up. Some reason higher I can get my lights to the top of my tent the easier it is to cool it off that's why I built a table to lift the plants up because my lights are all the way at the top of the tent. Hope this helps because it took me a long time to figure all this out
JohnnySocko
Active Member
lots of internet perpetuated bullshit from teenagers who have not grow a single plant other than cannabis...
^^^ agreed: as mentioned: fresh air, water and access to CO2, blah blah....and yeah "optimal/ideal" are just params inside of a tolerance
and 90F ain't gonna kill anything native south of Alaska (well maybe lettuce and Alpine daisies)
...also another factor I learned from living out west is: root temps; foliage temps; air temps ;direct radiation; foliage respiration; evaporation cooling; relative humidity, are different variables that change the over all temperature tolerances
I've watched plants that were allegedly not supposed to grow in direct sun do so if their roots were in damp cool shade, and the plant reached out and adapted to direct sun...
...and of course how fast can the foliage deal with moisture loss at a given temp...
moreover a BIG factor in temperature tolerance is how long a plant is exposed to direct light daily; believe it or not, a plant is more likely to adapt to direct sun/higher temps if the duration of direct light is longer in terms of hours per day....plants that all of a sudden get hot temps late evening/western exposure burn up faster than southern exposed plants
Also "air temperature" does not have exactly the same effect as radiant heat from direct sun light (or lamps)
^^^ agreed: as mentioned: fresh air, water and access to CO2, blah blah....and yeah "optimal/ideal" are just params inside of a tolerance
and 90F ain't gonna kill anything native south of Alaska (well maybe lettuce and Alpine daisies)
...also another factor I learned from living out west is: root temps; foliage temps; air temps ;direct radiation; foliage respiration; evaporation cooling; relative humidity, are different variables that change the over all temperature tolerances
I've watched plants that were allegedly not supposed to grow in direct sun do so if their roots were in damp cool shade, and the plant reached out and adapted to direct sun...
...and of course how fast can the foliage deal with moisture loss at a given temp...
moreover a BIG factor in temperature tolerance is how long a plant is exposed to direct light daily; believe it or not, a plant is more likely to adapt to direct sun/higher temps if the duration of direct light is longer in terms of hours per day....plants that all of a sudden get hot temps late evening/western exposure burn up faster than southern exposed plants
Also "air temperature" does not have exactly the same effect as radiant heat from direct sun light (or lamps)
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Cobnobuler
Well-Known Member
Hell I didnt know it was 90-100 outside in Kentucky regularly !!
Choo
Well-Known Member
I would add and as JohnnySocko alluded to, direct afternoon sun (western exposure from noon on) is more intense than direct morning sun and plants that are exposed to direct afternoon sun will be hardier than morning sun plants. I try to harden off my starter plants with afternoon sun before I set them out. They tend to adapt easier that way and believe me there's nothing as heart sickening as watching your babies burn up and wither because they weren't allowed to adapt. That goes for my vegetable garden too.
You would be surprised what kind of conditions plants can adapt to if they get nutrients and water and as was stated their root systems have a good cool light nutrient rich neutral ph medium to grow in. However if you are starting plants indoors you must always harden them off before placing them outdoors. When growing indoors I wouldn't worry about an 80* temp.
churchhaze
Well-Known Member
80F is perfect.
burnedout1958
Active Member
Since I'm 6 blocks from one freeway and 2 blocks from another freeway (the busiest freeway in southern California) , I must be golden when it comes to Co2 . temps so far have been below the 80's but are now going to start climbing, I have already seen the leafs curling up on the edges all the way to the base of the leaf so , they are getting hot, but I'm now watering daily. most are in 5 gallon containers with a medium of Slacker aeration formula mixed with Happy Frog 1:1 ration and one bag of Ocean Forest they seem happy, but I will find out by June how ell this strain does down here. so far it seems much more mildew resistant than the last harvest I had of 3 other strains. oh 3 plants I put in the ground with a large hole filled with said planting medium and they seem much more stable
kinddiesel
Well-Known Member
ok here is the deal . cloneing them trying to get roots the temp needs to be under 75 or no roots will form or the stem will rot . and veg . it van go as high as 110 f and the plants will grow I like the heat about 90 to 95 f under strong lights they grow super insane fast !. flower. first 5 weeks depending on your strand the temp can be up to 100 f. they will grow fast and happy. ok last 3 weeks of flower you need to keep the temps cooler once the buds start to get big. why ????? because if not mosttttttttt of the time if its hot the buds will be more loose not dense , some people smoke it and tell you its not as strong . this is from my experience . honestly if you can get the temps down around 75f stead late flower or cooler the quality really comes out. show quality stuff. any hotter and its may be ok but in the 90 to 100 quality will suffer greatly. BUTTTT it will grow. so guys grow how ever you want but if your a commercial grower . there is a shit load of completion out there. so you can only grow the best of be stuck with product you can sell and your out of business after your first grow . here in Michigan the quality of this has rose so sharply im very impressed . I see high time quality stuff being sold on the streets for 200 to 300 a zip . so if you flower hot good luck reselling it for over 100a zip the market is tuff ~!!!!! .......................................... legal note . all my posts are related to ghost chilly peppers . past or present posting and if its listed as other then its a total bull shit not true. or made up fiction .