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Best Strains VS High Temps

High temp runs

High temp runs

I will say I'm averaging 97.6 degrees ...and maintaining...it's all about airflow and how far the canopy is away from the light....but most importantly is have enough plants to fill the space...the more foliage the cooler it will be...if you stick a few small plants in the heat..they ain't gonna make it..but with a bunch of foliage they will flourish.....I do it every summer....I can't wait for fall and winter to get the purple hues
 
but most importantly is have enough plants to fill the space.. the more foliage the cooler it will be.. if you stick a few small plants in the heat.. they ain't gonna make it.
Spot on with this. It is much harder to get young plants going in high heat than to maintain a full grow room.

I just experienced the hottest summer we have ever had down under with temps around 40 - 45 deg C for weeks on end. Practically every other grower I know plants died except for mine, which is an old school Jack Herer cut. It is important to maintain good ventilation, plenty of water and run the light at night if you can.
 

madalasatori

Well-known member
Veteran
Spot on with this. It is much harder to get young plants going in high heat than to maintain a full grow room.

I just experienced the hottest summer we have ever had down under with temps around 40 - 45 deg C for weeks on end. Practically every other grower I know plants died except for mine, which is an old school Jack Herer cut. It is important to maintain good ventilation, plenty of water and run the light at night if you can.



Do you guys down there not use AC?
 

noreason

Natural born Grower
ICMag Donor
Veteran
Just finished a second run of AgentOrange with pretty hot temps. and they ended with rock, dense buds like winter runs. They impressed me on this side, so if that's you're looking for, AO could be a good strain for you.

:wave:
 

Easy7

Active member
Veteran
Best thing is get a larger light for the cooler months. No need for personal summer grows. Just grow bigger when the ac is off.

If keeping cuts, get lights that dial down. Summer ac is costly enough without growing.

I am mostly interested in getting a dollar to go the furthest. Know to much about this hobby to get rapped up in cumbersome logistics.

Power bills under $100 in the ac season look really good. If outdoor is not possible, go bigger in the winter. Possible here to get two fall to spring harvests indoors. If keeping cuts and growing sog, more harvests are possible. All depends on plant limits.

If I could grow outdoor enough for a year I would. It's so darn cheap. I couldn't care less about bag appeal and larf. Outdoor hash is as good as indoor and I feel it's got more body.
 

zoo

Active member
i use dimlux lights with master controller

As soon as temps get above 31 the lights automatically dim. When temps hit 33 despite dimming half the lights turn off and flip flop every 6 hours for even light distribution and then at 35c all the lights shut off to protect crop :D
 

thejact55

Well-known member
Echoing other thoughts. Vegitation helps. More important than the strain in summer is the setup. I have all 4 season, cold winters so i can hit it hard with 1000 watt hps in the winter, and hot summers, so i scale down to a led light. It still gets hot but managable. I have a 900 watt led in a 3x3 with minor ventilation and my plants are fine. I work on mothers, clones ect in another smaller tent with a large flouro also. I save my ac for my sweaty ass. Yeild suffers slightly but i can still run. Lights on only at night, not during the heat of the day. Know your limits and buikd for the time of plenty later on indoors is the name of my game. But i dont need money nor a boost in my personal stash ever, so it might be different circumstances...
 

Infinitesimal

my strength is a number, and my soul lies in every
ICMag Donor
Veteran
no matter what, high temps will "boil" off highly volatile monoterpenes... which is what makes your weed "loud" and taste good as well as modulate the effects of THC... regardless of species or breed...

heat kills the quality, when growing indoor at least, no way around it.

the only thing that will help strain wise, is if the specific genotype has a larger proportion of sesquiterpenes... which have a higher boiling point, so will hang around a bit longer in higher temps... the buds naturally wont smell as much, as its the evaporation of monoterpenes that our noses detect, but they will retain some flavor and effect :tiphat:
 

Jhhnn

Active member
Veteran
My temp control problems went away when I switched to twin 315w CDM's vs my previous 1000w system. I'm always growing something different & use recycled organic soil so exact comparison isn't possible but the 315's give excellent results with 40% less heat & power consumption. They're really top shelf hardware. LED's might be slightly more efficient but the upfront costs for quality units are very high.

We run a big evap cooler & whole house fan on the casa, use two stage air cooling on the grow space. The lights are on in daylight hours & outside high temps are often in the low 90's F. This is the current batch from a week ago-

https://www.icmag.com/ic/picture.php?albumid=52773&pictureid=1767515

I'll start harvesting & fresh trimming later on today, at least the plant in the front left.
 

Douglas.Curtis

Autistic Diplomat in Training
What many of us have failed to remember, during high heat conditions, is the significant increase in transpiration. The plant is processing much higher volumes of water to stay cool through evaporation.

(Edit: So, what I guess I meant to say is our opinion, of which strains do best, needs to be formed with the knowledge of how we fed the strain during high heat conditions.)

When transpiration rates go up, nutrient strength needs to be lower to prevent overfeeding. Amended soils suffer through not being able to change nutrient levels. Mixed nutrients allow greater flexibility and must be mixed at much lower strengths. Hydro setups which are already mixed can be diluted through pumping out some of the solution and adding back plain water. Be sure to adjust the pH accordingly. :)
 
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