What's too cold?

[galderman0110]

I have a grow room I just built in my garage. It gets fairly cold at night here, and I'm wondering what's too cold for the plants during my 12 hour off period?
My room is OSB with panda stapled on. No insulation. I am starting with 1x1000w bulb and will be @ 4x1000w somewhere down the road. Any ideas? should I run a heater @ night? It does freeze here occasionally.

 

[stillfree]

Well what is the temp in there...

 

[fir3dragon]

we need the temp first.

 

[blimey]

Stay above 60 at least. Run your lights at night and off during the day.

 

[HiIGrow]

ideal temps are between 78-82F. I have let mine drop down to 72F and they are still good to go!

 

[Chummerbum]

i'm with blimey, keep it above 60. i think a little space heater might do your plants some good

 

[frmrboi]

cold nights stunt root growth which will stunt the rest of the growth. 70 f is ideal
yeah, get a heater ASAP but cover the power on light or you'll get hermies don't get one with glowing red wire heating elements either, a ceramic heater or oil filled radiator is what you want. Sealed pails of water will store a lot of lights on heat for later BTW.

 

[HiIGrow]

You want radiant heat!

 

[frmrboi]

You want radiant heat!

yeah, that would be ideal with the pots sitting on top of it.

 

[Dont Fear The Reefer]

With all that lighting you should have ample heat in their I would think, maybe add some outside insulation. You could always use heating pads under pots on low to insure dirt stays warm....I think they even make a growing heating pad..
http://www.growingmicrogreens.com/growing-supplies/jiffy-plant-growth-heat-mat?utm_source=google&utm_medium=cse&utm_campaign=base

 

[galderman0110]

Thanx everyone for the replies. I will put the thermometer out tonight and have an update in a little bit. I love the sealed waterpail idea. Would you recomend a metal can or plastic jug? Also I have not gone to flower yet I am still in veg. I want my room as close to perfect before I go to flower. I have some unknown seeds (have an idea but not sure) that I want to sex, but if they are females I want to run them out right. They are 6 weeks old.

 

[galderman0110]

It's 9pm here and the temp is 56F will be freezing by mornin

 

[frmrboi]

. I love the sealed waterpail idea. Would you recomend a metal can or plastic jug? .

they'll both work. Works best in a greenhouse. You'd need hundreds of gallons to make a difference and a heater too still.