How Hot is too Hot?

sprhilton

sprhilton

Active Member
my garden is a steady 85* with the fans on (intake/outake duct fans) they are turned off for half an hour on the hour from 8-5 so my co2 is not going to waste.. yhen the temp goes to 90.. i'm sure this is ok as the co2 is there but an expert oppinion would be greatful..

i am getting an A/C unit soon but wodered if i've hurt the flowering at all

week 7 now!!!
 
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Badmf

Well-Known Member
You're ok, but either adding aircooled lights or as you said and A/C would be best. The last couple of maturity weeks co2 isn't really necessary as growth has slowed/stopped.
 
sprhilton

sprhilton

Active Member
how can i tell when theres 2 weeks left, at the moment on the top buds one or two pistons are turning orange(very exiting) most are white, all the lower buds are all white..
 
sprhilton

sprhilton

Active Member
im doing power skunk at the moment and the nxt ones im doing lsd and not really sure what to grow with it?????

the hairs on the plants are only starting to turn at the top and the bottom not much at all how can i tell when theres only two weeks left do you have any pics

thanks
 
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Badmf

Well-Known Member
What is needed here is a therm/hum controller, it won't arbitrarily come on if not needed only at pre-set highs of temps and humidity. This way if you connect your CO2, it will automatically replenish after each exhaust. Once your room is more under control this won't be often.
I run temps at canopy of 90F without problem but this is strain specific. I have heavy oscillating fans (hoses attached to the back of the fans going to the floor, brilliant!,lol) re-circulating air from the floor (laden with CO2 and cooler to boot) my CO2 is 1800ppms this is a dialed in grow so you will have to learn each strain each grow and do the same.
 
MadDagger

MadDagger

Member
Use the back of your hand to judge if it's to hot.Hold your hand at the tops of your plants and if the lights to close it will burn the back of your hand if not your all set.
 
Relaxed

Relaxed

Well-Known Member
I have tried that and I can't measure it? Air cooled I can put my hand up to the glass and it's ok for me but I like it warm...Nothing appears too hot and I know you can't put a plant up to the light....
 
sprhilton

sprhilton

Active Member
sorted! the air intake now comes from a room with an open window, i have both 600w hps lights on and the temp is a steady 82*

HOW FUCKIN HAPPY AM I...
 
northeastern lights

northeastern lights

Well-Known Member
I run in the low 90's in the summer. Just have to water more. It's too hot when your plants are effected in a bad way. There is no set temp. Depending on the grower and the strain. I have no problems. If your plants show no signs then your fine.
 
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Badmf

Well-Known Member
Once a plant reachs a certain temperature it ceases to grow and spends it efforts trying to stay alive in the heat!
 
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DinafemHazeAuto

Active Member
85 is fine ive seen rooms over a 100 and still do just fine....arizona texas those kinds of places where its 100 outside so if they can grow outside they can inside exp if u have co2 from what ive learned and read...
 
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Badmf

Well-Known Member
Do yourself a favor and read up on plant biology, the statement is not something I made up. Surviving and thriving are two separate things!
http://extension.oregonstate.edu/mg/botany/heat.html http://en.wikipedia.org/wiki/Cannabis_cultivation http://www.amsterdammarijuanaseedbank.com/Growguides/Hydroponics/how-to-grow-marijuana-hydroponics-5.html http://www.growkind.com/forum/showthread.php?t=23806 lot of info on your "optimum" conditions and not just which ones the plant could survive in. Hot climates will lower potency and cause more stretch. But I am not telling you , just making you aware of it. Certainly outdoors conditions are quite uncontrolled and have many many differences than indoor.
 
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