Strains that will survive 50 degree nights and 90 degree days

[blunt master]

as everyone knows its winter, i live in the white mountains in Arizona my grow room temperature gets to below freezing, i have set the timer on my lights to make it so it stays kinda warm at night, so i have my lights turn off at the hottest point of the day which is about 45 to 50 degrees f., my grow room hits a spike of 89 to 95 degrees daily, then the lights turn off and it quickly drops to 45 or 50 degrees f., ; i am just wondering if anyone knows of a strain that will thrive in these conditions, or at least grow and not get to stressed,.. i hope to get some responses soon.. please and thank you

 

[realz]

try a auto flower plant I no its probally not what u want... but it will flower with the lights on all day to keep warm?

 

[blunt master]

i just need a strain that does not get too stressed from the temperature fluctuations

 

[420 Motoco]

Those spikes IMO are way too much. Insulation is needed to help retain a more stable temp. An Split-air conditioner/heater combo would be ideal but adds up in cost, installation & have 220v available. Indica can handle colder climates & Sativa in warmer climates. I'm growing OG Fire (Hi temp 80d, low 60 and use 'Full Power' that helps stabilizes drought & cold temp drops (had the power go out when I was away and when I came back it was 108d and like a rain forest)...make sure its the 1st mix in your nuits & mix well before adding anything else. GL

 

[blunt master]

i have it fixed so the max temp is 89.3 and the low was 49.1 and both were a spike for about an hour, you can tell the plants are much more happy now,.. i ordered a heat circuit switch that will circuit on at 80 degrees f. and circuit off at 60 degrees f. i am going to hook that to my exhaust fan (that is how i cool the room right now)... i figure that will solve my heat issues for the rest of the winter.. now i need to figure out how to stop it from dropping below 60 degrees f. other than an electric heater(which makes the electricity bill go crazy) does anyone have any ideas? im probably just going to buy a 250 watt hps set up and throw it in there for the time being... what do you guys think?? is there actually such thing as using to many lumens

 

[blunt master]

from what is sounds.. correct me if im wrong, the ful-power is organic and-or perfectly fine for a strictly organic crop?

 

[420 Motoco]

from what is sounds.. correct me if im wrong, the ful-power is organic and-or perfectly fine for a strictly organic crop?

My bad...your 100% correct. I was thinking of Pro-Teck for heat/cold/drought protection. I also used Full Power in my last recipe
Growing OG Fire. Full Power is organic and can be used in hydro app as well. Thanks for pointing that out...I hate incorrect info. You can have too many lumens and burn the leaves.

 

[blunt master]

oh lol i bought ful power... ha ha ha i might go buy some of the pro-teck heat and cold now. although i highly doubt its organic... i have not gotten more lights, but i did buy a fireplace thermostat switch that i hooked up to my exhaust fan so it turns on at 85 degrees f. and back on at 65 degrees f. it works so well my temps have stayed at 85 for the high(which is a spike) but when the lights are off they get cold, it gets down to 38 degrees f for about 3-4 hours, which is slowing the growth substantially, but since i got the heat down my plants have been thanking me ever since