PJ Diaz
Well-Known Member
I stand corrected. That's pretty cool. I wonder which part of the spectrum causes that.
Does Temperature Turn Plants Purple??
- Thread starter afronator3000
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Herb & Suds
Well-Known Member
lusidghost
Well-Known Member
I've had plenty of grows where they didn't purple up or only some did, so it's a mystery to me. It's proof of something, that's for sure.
Nutty sKunK
Well-Known Member
Yes I notice it on some more than others. Usually after I’ve trained them and exposed the stems. Some sort of response to UVA/B I guess?
PJ Diaz
Well-Known Member
True, but out of the three posts, there's a horrible ratio of good advice to bad.I let it slide since he rarely post for some reason
3rd post since 2015
xtsho
Well-Known Member
I've grown plenty of purple weed. Not once did I ever lower the temperature for the purple to show up. Cold temps can cause purple leaves but once you trim those away you're usually left with green bud. Purple genetics will have purple flowers regardless of temperature. Referencing @PJ Diaz post regarding PCK, It will purple regardless of temp and if it doesn't it's a green pheno. The green pheno is also better in every aspect than the purple/red phenos. I spent around three years working the purple out of a PCK cross I made. Even though I started with a green pheno the purple kept coming back. It took until F5 to get rid of it. Now I have a nice stable PCK/Durban that grows green from seed almost 100% of the time.
From my experience purple weed is inferior.
Reformed purple weed grower.
From my experience purple weed is inferior.
Reformed purple weed grower.
lusidghost
Well-Known Member
Not true. My GDP never purpled up in the summer, but did in the winter. Buds, not leaves.I've grown plenty of purple weed. Not once did I ever lower the temperature for the purple to show up. Cold temps can cause purple leaves but once you trim those away you're usually left with green bud. Purple genetics will have purple flowers regardless of temperature. Referencing @PJ Diaz post regarding PCK, It will purple regardless of temp and if it doesn't it's a green pheno. The green pheno is also better in every aspect than the purple/red phenos. I spent around three years working the purple out of a PCK cross I made. Even though I started with a green pheno the purple kept coming back. It took until F5 to get rid of it. Now I have a nice stable PCK/Durban that grows green from seed almost 100% of the time.
From my experience purple weed is inferior.
Reformed purple weed grower.
xtsho
Well-Known Member
What's not true? I did put "usually" in this statement I made:
"Cold temps can cause purple leaves but once you trim those away you're usually left with green bud."
As for the GDP, I've never grown it. Most of the purple weed I've grown has been indoors with temps never getting cold. It's just not a factor that I've ever needed for purple weed. But I'll take your word for it and stand corrected.
lusidghost
Well-Known Member
I was mostly addressing, "Purple genetics will have purple flowers regardless of temperature." I was running legit seeds of Ken's GDP too. It was a pretty weak strain though. I don't think purple equals less potency so much these days, but it's true for most strains that have been around for 10+ years.
PopAndSonGrows
Well-Known Member
I'm starting to think ALL modern polyhybrids nowadays have the propensity to purp-out.
Gemtree
Well-Known Member
Mumbeltypeg
Well-Known Member
Thank you
Kami Samurai
Well-Known Member
Ken’s GDP Indoor DWC Grow
Last Crop New New New Old Light- Perpetual 4x 600 Watt HPS Grow Running 2 lights 4 weeks apart. Nutrients- GH Flora Trio Base with custom additives; Floralicious plus (Veg), Sweet Raw (flower), Calmag plus, RapidStart, Silica, koolbloom wet/dry, Superthrive, Hygrozyme, Crystal Burst...
www.rollitup.org
I did this a while ago. The pigment comes from anthocyanin, which only reveals from a cold drop after chlorophyll breaks down, which will lower the ability your plant has to photosynthesis and ends up being detrimental to overall quality. A true Purp needs no cold drop and begins turning purple around week 2 of flower usually. Tropicana Cherry #8 for example.
PJ Diaz
Well-Known Member
Keep in mind that GDP was largely grown outdoors when it was named, so it's reasonable to question whether or not it's really a genetically purple strain, or if it's just one of those strains that purples up in low temps.
Nah. I got through a pretty cold grow a month or so ago, and it was two related strains: Gush Mints, and Mango Mintility (Gush Mints x Mango Haze). The Gush Mints purpled up real nice, as it always does, but the Mango Mintility stayed green.
conor c
Well-Known Member
In a strain that has green and purple phenos this 100% makes sense when you consider how efficient green is vs purple for photosynthesis so it stands to reason the better a plant is at that the better a smoke its gonna be i find its always the case i have still yet to smoke a purple that was stronger than its green counterpart in any strainI've grown plenty of purple weed. Not once did I ever lower the temperature for the purple to show up. Cold temps can cause purple leaves but once you trim those away you're usually left with green bud. Purple genetics will have purple flowers regardless of temperature. Referencing @PJ Diaz post regarding PCK, It will purple regardless of temp and if it doesn't it's a green pheno. The green pheno is also better in every aspect than the purple/red phenos. I spent around three years working the purple out of a PCK cross I made. Even though I started with a green pheno the purple kept coming back. It took until F5 to get rid of it. Now I have a nice stable PCK/Durban that grows green from seed almost 100% of the time.
From my experience purple weed is inferior.
Reformed purple weed grower.
PhenoMenal
Well-Known Member
the purple blush comes from anthocyanins. these are antioxidants, they are not cannabinoids, and they are not psychoactive, they are purely window-dressing.
newbplantgrower420
Well-Known Member
Ive also found temps dont make a difference as far as strains getting purple.
Only problem I had this last run with my purple strain is the top half was purple and the bottom half was green under my 650w LEDs. The plant was ~4ft. I defoliated at day 21 but never did it again.
Im thinking the buds need strong enough light to turn color or maybe another defoliation after Day 21 towards the end. My side plants also didnt turn purple. They were at the edge of the flood table and the lights a 4x4.
Do you guys get your whole tree to have purple nugs or 50/50 like I did. Is it a defoliation issue or the actuall PPFD has to be strong enough to change the bud's color?
Only problem I had this last run with my purple strain is the top half was purple and the bottom half was green under my 650w LEDs. The plant was ~4ft. I defoliated at day 21 but never did it again.
Im thinking the buds need strong enough light to turn color or maybe another defoliation after Day 21 towards the end. My side plants also didnt turn purple. They were at the edge of the flood table and the lights a 4x4.
Do you guys get your whole tree to have purple nugs or 50/50 like I did. Is it a defoliation issue or the actuall PPFD has to be strong enough to change the bud's color?
Wastei
Well-Known Member
Purple traits is down to genetics. If a plant purple from deficiency it's not a purple strain per say.
newbplantgrower420
Well-Known Member
I agree. Im wondering why my 4ft plant is purple the first 2ft and green the bottom 2ft. Could it be a defoliating issue or does the ppfd have to hit a certain number for the bud to actually turn purple for the lower portion
conor c
Well-Known Member
Smoked both back in the day also tried oldtimers one too its different from the green phenos i wouldnt classify it as more potent however just different kinda like the way with aces panama the red has different effects from the green godess side of things reds more stoney vs the green more uplifting