Introducing cold for color. Yield?

JustDreamin

JustDreamin

Active Member
Hey everyone I’ve got some purple haze in a grow box that’s 3 weeks into flowering. I’m introducing cold temps at night low 40s (outside temps from open window)

With its genetics, cold temps should change her to purple colors. Would this effect my yield? This is the first time I’m trying this. I average 6 ounces every harvest. I’m curious if the cold temps result is less yield.
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Quinteli

Active Member
Interesting question, I have some purple haze seeds and was thinking about waiting till the end of summer to grow them so I can have more control over the temperature.
 
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spek9

Well-Known Member
Temps down in the 40s will most certainly stunt growth, especially if you're in a non-hydro setup where you can't control the temperature of the medium.

You'll be looking at odd growth patterns, smaller buds, and overall stunted growth.

I was running at 52F in my basement over the winter, and noticed all of what I've said here up until I got my lights-off temperatures up to 58-60F.
 
JustDreamin

JustDreamin

Active Member
spek9 said:
Temps down in the 40s will most certainly stunt growth, especially if you're in a non-hydro setup where you can't control the temperature of the medium.

You'll be looking at odd growth patterns, smaller buds, and overall stunted growth.

I was running at 52F in my basement over the winter, and noticed all of what I've said here up until I got my lights-off temperatures up to 58-60F.
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I’ll keep that info in mind. I heard that’s the temp you wanna hit for color change. Gotta figure that’s about Fall night temps. Also my day temps are 70-75. For 12 hours that should warm up the soil enough to hold heat for the cool nights. This is more of an experiment. But if it starts to look like she’s not budding as fast I will bring back warmer temps
 
JoeBlow5823

JoeBlow5823

Well-Known Member
Gond00s said:
some nice foxtailing tho were u running full power all the time or did u bump it down at the end? looks like good bud doe.
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Yeah full light till finish, it was to much. Im learning autos dont thrive on excessive light as much as photos. Switching to photos next round.

Wattzzup said:
It’s clearly purple from the Monster Energy drink!
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Monster is yellow. And i only feed my plants Brondo. Its what the plants crave.


These were all kept in the 65-75 range their entire life. None of the purple ones had any sort of good potency.

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Gond00s

Gond00s

Well-Known Member
JoeBlow5823 said:
These were all kept in the 65-75 range their entire life. None of the purple ones had any sort of good potency.
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I feel like that might be the auto part that affected the potency i might be wrong but I've ran some autos pretty well just they were not as strong hitting but they finished fast so maybe that could be it. got my mcc harvest and in jars looks good very cookie dom. bongsmilie
 
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RangiSTaxi

Well-Known Member
JustDreamin said:
Hey everyone I’ve got some purple haze in a grow box that’s 3 weeks into flowering. I’m introducing cold temps at night low 40s (outside temps from open window)

With its genetics, cold temps should change her to purple colors. Would this effect my yield? This is the first time I’m trying this. I average 6 ounces every harvest. I’m curious if the cold temps result is less yield.
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Purple colors often don't appear until the last 2 weeks of flower, sometimes in the very last week of flower in very ripe bud.


Dropping night temps now is a very bad idea, it will possibly create extra stretch and will effect yield.

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6 days later
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Genetics mostly determines color as does environment to a much lesser extent, and you should never try force it because doing so will affect quality and yield, as the purple color is a sign of green chlorophyll breaking down and you don't want that happening too soon as that chlorophyll powers your plants carbohydrates and in-turn yield .

Just Grow them the best you can keeping night temps warm, and if they are not purple enough for you, change the strain, many purple strains dont go purple indoors and thats totally ok..
 
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Quinteli

Active Member
RangiSTaxi said:
Purple colors often don't appear until the last 2 weeks of flower, sometimes in the very last week of flower in very ripe bud.


Dropping night temps now is a very bad idea, it will possible create extra stretch and will effect yield.

View attachment 4555431
6 days later
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Genetics mostly determines color as does environment to a much lesser extent, and you should never try force it because doing so will affect quality and yield.

Just Grow them the best you can keeping night temps warm, and if they are not purple enough for you, change the strain, many purple strains dont go purple indoors and thats totally ok..
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What strain?
 
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