Is Purple a Problem?

cat of curiosity said:

pretty, but that's a phosphorous tox, resulting in ph imbalance and p def.

looks pretty. next time, more k, less p...

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Nonagronomist said:

Hmm. I'll take that under advisement, although it seems unlikely. It's in dirt (my combo of organic potting soil, perlite, seeding soil, and extremely mild nutrients, applied once). All it gets is pHed water.

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cat of curiosity said:

yes, but that's the great thing about soils/organics. shit rots, releasing different chems at different times under different circumstances. some people love to use nature and let god do it. others become the god, and control all aspects, religiously even...

too much p, lockout, resulting in p def. look around these boards, there are thousands of similar images, all due the the same issue. pot does not like super phosphates, and prefers potassium.

1-2-3 is a good route for flower

1% nitrogen
2% phosphorous
3% potassium

anything in this ratio will (for the most part) be perfect for your flower cycle...

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Nonagronomist said:

Ok. . . . let's say it's phosphorous toxicity locking out the uptake of potassium. Then the reasonable thing to do would to flush with plain pHed water, no?

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Nonagronomist said:

I have an Ultra Lemon Haze Auto growing in northern California at present, in a very sunny but protected spot. In response to the sun, the plant has gone deep purple, but is otherwise healthy as a horse. It's my opinion that purpling is no big deal, just the plant's natural reaction to abundant sunshine. Sort of like a suntan, but without the cancer. It's at about 80 days from seed, and the breeder says it should finish in 80-100 days.

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So what do you think? Too purple? Or just glorying in the free rays?

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ThaMagnificent said:

Could be drastic temp changes. My tent goes from 68 at night to 79 lights on and mine turns purple

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Frajola said:

U meant the leaves turning purple or the buds? ....or both? Being a sativa dominant could help w colors changes I guess. Looks great any way

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Indacouch said:

I've never heard of abundant sunshine causing purple before ....usually it's cold temps a def or the strain itself .......but if your in decent soil why are you even worrying about the ph of your water going in ....a good soil will buffer itself ...and ph swing in soil is a good thing IMO for nute uptake .....

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Nonagronomist said:

Like I said, I'm new, and everybody says you need to pH your water, even for an outdoor grow. My tap water comes out about 8.8 and I've been taking it down to 6.5. You tell me this is maybe unnecessary?

I've also read that the purple anthocyanins are a natural reaction to sunlight, a method whereby the plant protects the chlorophyll from sun damage.

That's the problem I'm finding, as a newbie. There are at least 5,000 opinions on each and every micro-factoid associated with growing cannabis. Sometimes it's hard to extract the consensus view from all the noisy talkers, not to mention being able to recognise subtle things that may run counter to "common knowledge."

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Nonagronomist said:

Like I said, I'm new, and everybody says you need to pH your water, even for an outdoor grow. My tap water comes out about 8.8 and I've been taking it down to 6.5. You tell me this is maybe unnecessary?

I've also read that the purple anthocyanins are a natural reaction to sunlight, a method whereby the plant protects the chlorophyll from sun damage.

That's the problem I'm finding, as a newbie. There are at least 5,000 opinions on each and every micro-factoid associated with growing cannabis. Sometimes it's hard to extract the consensus view from all the noisy talkers, not to mention being able to recognise subtle things that may run counter to "common knowledge."

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Indacouch said:

You asked for people's advice rather you take it or not is up to you ...there's lots of great books and videos all over if your not a people person ......Ive been growing outdoors in soil forever ....I use to ph my water but learned from more experienced growers that in good soil ph will buffer itself ....il occasionally do a ph of my runoff but usually I just let my tap water sit out in the tank a few days to let chlorine evaporate ....however if I'm lazy or forget it comes straight out the hose at a ph of very near to yours but by the time it passes through my soil it's perfect ......do what you want your grow makes no difference to me just thought I'd share some of what I've learned over many years ......I'm all about helping a fellow grower out big or small and am happy to see new growers keeping this art alive .....but you may wana get a thicker skin if your guna last on Riu just a heads up ..........don't care if I get called a newbie or told what I do personally is wrong ....cause when I'm trimming my 8 to 10 ft monsters i could give a fuck ........good luck

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