Cold temperatures experiment

heathaa

heathaa

Well-Known Member
So I live in Maine. It's almost the end of April and temps have been staying steady around 40-45 degrees at night. During the day, temps have been hovering around 55 with a day or two reaching low 60s. I planted one single random bag seed in a bucket of organic soil. It sprouted about a week ago. I put the plant outside around 2:30pm every day for the first week and would bring it inside around 9:30pm into my basement which hovers around 60 degrees. Each day has been cloudy or light rain and minimal sunlight. Last night I permanently moved the plant outside to endure the cooler temps and see I'ma The seedling lives through this as the temperatures slowly increase over the next month
 
heathaa

heathaa

Well-Known Member
My goal is to test the seedlings endurance and thresholds and push the plant in it's infantcy stage to stay alive. I will record the growth every few days so I can compare to my regular temperature grow that I'm starting in a couple weeks. I should be able to see if there's any major differences in stunted growth or be able to verify the plants breaking point. Hopefully temp thresholds can be established and compared to today's grows and could also be compared to grows from a decade or further back to help decide if genetics are possibly getting better
 
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formularacer

Well-Known Member
If it wasn't a auto I would worry about sending it into flower mode.
Waiting till May 5th to put out my light sensitive ones, I am think of putting out one of my autos this Thursday as the tent is getting crowded.

I think you will find the plant will survive but much like electronics it is happy in a certain temp range. There are very few plants like bamboo that will start to grow at 45 degrees and grow faster the higher the temp goes.
 
Boatguy

Boatguy

Well-Known Member
heathaa said:
So I live in Maine. It's almost the end of April and temps have been staying steady around 40-45 degrees at night. During the day, temps have been hovering around 55 with a day or two reaching low 60s. I planted one single random bag seed in a bucket of organic soil. It sprouted about a week ago. I put the plant outside around 2:30pm every day for the first week and would bring it inside around 9:30pm into my basement which hovers around 60 degrees. Each day has been cloudy or light rain and minimal sunlight. Last night I permanently moved the plant outside to endure the cooler temps and see I'ma The seedling lives through this as the temperatures slowly increase over the next month
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It will flower as soon as it can... Then revert, followed by reflowering when the days shorten again.
Nothing aside from a deep freeze will kill it, and i think we are beyond that risk but you never know in Maine.
 
C

conor c

Well-Known Member
heathaa said:
So I live in Maine. It's almost the end of April and temps have been staying steady around 40-45 degrees at night. During the day, temps have been hovering around 55 with a day or two reaching low 60s. I planted one single random bag seed in a bucket of organic soil. It sprouted about a week ago. I put the plant outside around 2:30pm every day for the first week and would bring it inside around 9:30pm into my basement which hovers around 60 degrees. Each day has been cloudy or light rain and minimal sunlight. Last night I permanently moved the plant outside to endure the cooler temps and see I'ma The seedling lives through this as the temperatures slowly increase over the next month
Click to expand...
Cannabis takes frost and snow its the cold + constant humidity that dont get to evaporate thats the killer ime sure autos dont like it and temps below 10c slow growth for all plants but they can survive way colder long as they get to dry out the buds inbetween this is why morning light on your plants is a must in cold and wet more northern places
 
C

conor c

Well-Known Member
formularacer said:
If it wasn't a auto I would worry about sending it into flower mode.
Waiting till May 5th to put out my light sensitive ones, I am think of putting out one of my autos this Thursday as the tent is getting crowded.

I think you will find the plant will survive but much like electronics it is happy in a certain temp range. There are very few plants like bamboo that will start to grow at 45 degrees and grow faster the higher the temp goes.
Click to expand...
Where im at we gotta wait till may 15th or 16th till after the solstice for light hours to increase to put photos and semis out im lat 56ish
 
B

Bud man 43

Well-Known Member
Boatguy said:
It will flower as soon as it can... Then revert, followed by reflowering when the days shorten again.
Nothing aside from a deep freeze will kill it, and i think we are beyond that risk but you never know in Maine.
Click to expand...
Freezing temperatures are forecast here in southern CT this week- I would wait another week- no way it’s going to survive freezing temperatures
 
C

conor c

Well-Known Member
Bud man 43 said:
Freezing temperatures are forecast here in southern CT this week- I would wait another week- no way it’s going to survive freezing temperatures
Click to expand...
Most wouldnt but if its something super hardy it might suprise you bud the fact its a unknown means your probably right tho
 
Chief_Broom

Chief_Broom

Well-Known Member
Pot plants won’t do any real growing until the soil warms up into the 70’s. They can survive cold temps but the plant won’t grow until it’s roots get warm enough.

I live near 33 degrees north and I don’t bother anymore putting plants outside until May first. Lately my outdoor routine is to germinate seeds outside in small pots on May first. This gives me roughly 10 weeks veg an 10 weeks flowering. That’s a five month grow time with photoperiod seeds an that gives the plants plenty of time to get big but not too big. My target per plant is 1lb (larf an all). Works for me.
 
heathaa

heathaa

Well-Known Member
Ok.. what a story. When I moved them from the basement to outside permanently one was stringy and tall and the other one got bent over and pinched from its own weight. It went brown mushy except a sliver of green. So I added another inch of soil and covered it since it's dead I guess... They just got left outside with temperatures fluctuating from mid 30s at night and 45-55 during the day. Then out of nowhere, that little dead seedling I covered in an inch of soil popped up through the new soil stronger than ever. That little plant is not giving up.
 
heathaa

heathaa

Well-Known Member
It's going to be 43 degrees tonight and a high of 64 tomorrow. These are some hearty Little plants. Refusing to give up. We got a weak cold front about 3 days ago. Rainy quite a bit.. not a lot of sunlight. A lot of overcast days and chilly out. These plants haven't even seen 70 degrees yet. They seem to be growing just fine in these cooler temperatures.
 
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