Whats the coldest temputure can a plants be gorwn in?

420swed

Well-Known Member
I was wondering whats the coldest temperature you can grow a plant because right now i have my plant in my closet just for vegging then when it gets to big i have to move it outside but it will be in a 8x8 room with a 250w hps for light anyone know if this is possible??
 

the widowman

Well-Known Member
gonna need to be a 400w mh at least for a 8 x 8 room. and for opitmum growing the temps musnt go lower than 70 degrees.
 

420swed

Well-Known Member
how warm do u think it would stay if i made a big box with the 250 hps light on top and foiled it all ?
 

smokeh

Well-Known Member
it says in the grow faq!

dont let it drop below 50F night time temps. dont go above 85F day time. dont go above 95F if ur using c02
 

hockey4496

Well-Known Member
w/ that 250w hps in an 8x8 room you may be ok with a plant or 2..and that may actually keep the room warm enough in that cold temp at night if you don't have exhaust, but then u need co2 injection.
ps dont use foil, use some white paint or white reflective board
 

weezer

Well-Known Member
canada the temps are around 11-14 Celsius and at night it goes down to minis 5 -10
you must be in awarm part it is 3c at my place now
so let me get this straight you are growing a/some plants inthe 8x8 room tha once they are big you are going to put them outsde ????
 

420swed

Well-Known Member
you must be in awarm part it is 3c at my place now
so let me get this straight you are growing a/some plants inthe 8x8 room tha once they are big you are going to put them outsde ????
No iam vegging my plant is my closet right now then when i begin to flower iam moveing it in my 8x8 room
 

the widowman

Well-Known Member
put one of those grow tents in the middle of your 8x8 room then heat the room at night with a heater this should help the plants stay at 70 degrees. go to any hydro online shop and check them out.
 

xcyraxx

Well-Known Member
im growing planted in august ad the temps have dropped to 53 degrees at night and my plant looks like a monster but it is also really bushy and has a huge talk so its pretty hardy
 

420swed

Well-Known Member
those tents r way to expensive for me right now and yeh i need to flower for at least 2 months and there will be snow on the ground by then so if i get heaters should it be fine?
 

the widowman

Well-Known Member
try ebay.com there will be really cheap growtents there. cause a tent in the middle of the room is the only way your gonna have good temps. :peace:
 

hockey4496

Well-Known Member
how many plants you growing? you should be able to find a small tent that would fit atleast a few plants for under $100 if you look around...that will solve your temp issue no doubt, and you will get your money back when they grow nice and healthy.
 
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