marijuana and frost

vostok

Well-Known Member
I live in the midwest and I have 4 plants going outdoors in 6 gallon pots. The biggest is nearing 4 feet tall now. According to the farmers almanac my area gets its first frost in early september. The plant will not even be flowering for a month before this happens. The plants are in the woods where I wont be able to tend to them on a daily basis so im wondering CAN large healthy marijuana plants handle light frost if its brought on gradually as part of their enviroment? Is it worth it to risk it, well theres no other choice i cant put a 6 foot plant in my house :/
Opinions please thanks
You got frost ...you are just about fucked

what happens the air temp drops so low...

the surface water and the plants leaves freeze

as they freeze..it explodes the plants cells and sap

hence killing the plant in the worst way

Back in the day i have used rubber hot water bottles

100w fish tank heaters (that work well)

and painted solar matt black rocks (???)

if you can get them inside into a large 10 usgal pot

with extra soil acts as insulation

I have also chopped them down and frozen rootless cuts/clones

with about 10% success best is get them inside return to veg

with just enough light to get them to april/may?

good luck
 

too larry

Well-Known Member
Here in Larry Land {Northwest Florida} I've had 8 nights in the 20's the last two weeks. Of the 20 odd plants I had out, one is half-assed alive. Until I figure something out, I'm out of the spring crop business. Lots of work and seeds wasted.
 

vostok

Well-Known Member
Here in Larry Land {Northwest Florida} I've had 8 nights in the 20's the last two weeks. Of the 20 odd plants I had out, one is half-assed alive. Until I figure something out, I'm out of the spring crop business. Lots of work and seeds wasted.

Just about got me Larry-Land too Larry

20F- is -7C as many normal guys

will see that as 20C or 68F ...lol

By the end of the 20th century, Fahrenheit was used as the official temperature scale only in the United States the Bahamas, Belize, and the Cayman Islands.
(https://en.wikipedia.org/wiki/Fahrenheit)

nice
 

too larry

Well-Known Member
Just about got me Larry-Land too Larry

20F- is -7C as many normal guys

will see that as 20C or 68F ...lol

nice
Sorry, I should have said "in old money". Last year we had two nights of 28F in December, and 2 at 25F in January. I lost 12 plants to the 1st one, and none to the 2nd one. This year has been much colder.
 

mista sativa

Well-Known Member
Wrap plastic over them, cut vent holes, and zip tie the plastic to the base of the stalk... as long as they are somewhere that nobody will notice. Just watch the weather forecast and place them when it’s predicted to freeze. If temps start to level back off, just return to remove. You must be sure to remove when weather warms. If left on top long it may cause mold. Hide the plastic under a rock or log when not in use. They sell sheets of thin, clear plastic at wal mart for a few cents. The plants may make it naturally, and it may be a hassle, but it sucks to lose a crop that close to harvest. Good luck ✌
 
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too larry

Well-Known Member
Wrap plastic over them, cut vent holes, and zip tie the plastic to the base of the stalk... as long as they are somewhere that nobody will notice. Just watch the weather forecast and place them when it’s predicted to freeze. If temps start to level back off, just return to remove. You must be sure to remove when weather warms. If left on top long it may cause mold. Hide the plastic under a rock or log when not in use. They sell sheets of thin, clear plastic at wal mart for a few cents. The plants may make it naturally, and it may be a hassle, but it sucks to lose a crop that close to harvest. Good luck ✌
I had a couple of patches found from the air last year, so I'm not putting any kind of cover on them. Too much air traffic over the farm right now. I need to find some new plots, as my old ones are close to the found patches. Last year I used the white frost cloth. But we had fewer nights that were cold, and I had fewer plants. I was able to hike in and cover them at dusk, then coming back to uncover them at daylight. This time it was down in the 20's for 6-7 nights in a row. No way I could cover a couple dozen spots with white cloth and leave it in place for a week.

But we had another cold front come through. Got down to 16F and finished all the young ones I had in my screen room. There was one flowering plant that was kind of alive, but I chopped it anyway. Too much trouble for one small plant.

More time for hiking.
 

seanmace54

Member
frost will affect the leaves but not the buds. if the stems freeze, the plant dies. it usually has to drop below 30 at night to kill a plant, so quick snap frosts are not a big deal so long as it takes a while to get that cold, and warms up quickly.
I finally found something I agree with about growing in the north. I'm in central Vermont. Since october first its been mainly in the 50's during the days and 30's at night. Even the end of september. My plant has seen its most rapid bud growth in these last 3-4 weeks. It went from wondering if this was worth it, to padlocking the garage doors that lead out back, and screwing the gates shut on the 6' fence. Then lining the inside perimeter of the fence with the various garden tools I have that you just don't want to step on while walking through the back yard. Trip line attached to a 6' aluminum step ladder with a 25 pound box of nails on top of it.(as of yet my mother was the only one to trip it). This years is 80" tall
 

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