General Marijuana Growing
Growing in the cold. in the
The Grow Room forums; I like 65-67 at lights-off, and 77-80 lights on, never had an issue.
I like 65-67 at lights-off, and 77-80 lights on, never had an issue.
im a consistent 70-73* lights on and lights off. I grow in a basement, plus I have ac running when lights are on. my basement is 73-74* and 40% r/h perfect for growing and harvesting.
Got a digital thermometer with a high/low temp memory. It recorded a low of 50.2f last night. No lights, no fans, just a hepa filter fan on low. The temps dropped to the mid thirties outside last night.
So, would wrapping the pots with some kind of bubble wrap or insulation help to keep the roots from getting too cold? They'll be about a foot off the floor once they start growing for real. They're in a small seedling cabinet right now but they got stunted a bit. Light Warrior runs out of nutes fast and I was slow to transplant. (must've been stoned...) Hopefully they'll recover and begin growing. Time is irrelevant, so a slow grow isn't a big deal to me, however, keeping the girls (and boys) healthy is. I plan on topping several times and trying to make them bushy, but since they were regular seeds, I don't know which are male or female. Hopefully I'll end up with 3 out of 6 female. It would really suck if none were female, thought that's pretty low odds. (less than 3%, i think)
What about watering? My guess is they're not gonna need as much as if they were in a 90f closet.
Thats quite a big room u got there to heat, and i never done as big myself (sadly!) but if they're worthwhile, i can offer 2 possible cheap-ish solutions.
Firstly, have a browse for tubular heaters - i got one off ebay for £20 that runs at only 80W!! Its a 2ft long metal tube, with brackets & it gives off a good steady heat source - if u had 4 of those positioned correctly in room, they'd keep any chill at bay & raise it a few degrees certainly. They wouldn't blast it out if u needed big heat though, but i know u can buy 3 or 4ft ones that only cained about 100W as well. I'm in UK but guess u got same tho & probably cheaper in States.
Second idea, was if u can't heat the whole room, then ur right that the most important thing to actually keep warm is the roots. If u can keep ur soil/pots/roots warm, then the plant can tolerate its body being alot colder, and will not suffer so much growth delay that cold could possibly cause to unheated roots. Could u maybe wrap ur pots in some sort of insulating jackets, or put them on mild heat mats? Its a cheap solution, tho to be fair it won't negate mould issues too well directly, but it will certainly ensure plant stays more healthy & vigorous enough to better resist infections in general.
And maybe a combination of the 2 would be a cheapish, low power consumption option? Otherwise, i'll step aside for the big boys who actually know how to kit out whole rooms!
Last edited by RedWhiteBlueGreen; 11-08-2013 at 06:14 PM.
Im in a similar position I heard oil heaters are best because they can heat the air in a way that doesn't dry it out.
Gonna put one on a heating thermostat that knocks off at an acceptable temp.
Then just leave it and it only comes on when it needs to.
get a dehumidifier and run your light cycle at night when it's coldest
Done! I was thinking of maybe getting a heated foot pad from amazon, but I'm not sure if it'll gas off or not. I really don't want to deal with the smell of that. That tube heater sounded nice, but it doesn't look like they have them here in the states. I can hang a 60 or 100w ceramic bird heater lamp in the room...I don't know...I'll figure something out. Thanks for the advice all.
Originally Posted by Clown Baby