Purple stem experiences....?

Hi good people at Rollitup, i would like to ask if anyone has any experience or experiences with purple stems and what if anything made them go away. This could include purple petiols, veins, new growth and leaf undersides.

My main intrests in this subject involve seedlings and young plants and just recently i have noticed that any products i give that contain iron (mainly Fe2 and edta Fe) have a positive effect. I was using calmag that contained iron but have since switched to a more single iron supplement, needless to say i believe my own personal answer lies in the micronutrients but i wouldnt like to say either way at this point.

Any constructive observations are welcome but i dont want to get into a pissing match and am just looking for some inspiration on the subject in relation to nutrients not genetics.

Some would say nute Buildup I would say it can vary from that and genetics. My PEX had purple stems in her up until recently. Still some purple hues. And she's growing perfect so not a nute issue.

Kingrow1 said:

Any constructive observations are welcome but i dont want to get into a pissing match and am just looking for some inspiration on the subject in relation to nutrients not genetics.

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Experimenting with different levels of iron is something that actually makes sense compared to a lot of the stuff people have been trying recently. The difference between a barely noticeable iron deficiency and sufficient levels of iron is huge. Careful with too much iron though or you could bump into problems.

There's been a lot of talk about it recently. I've certainly noticed certain strains/phenos tend to get purple stems regularly. Haven't really been concerned about it as long as the overall health of the plant is good.

What about seedlings that pop from day 1 with purple/red stems? Again, not all, only certain strains/phenos and I use the same methods to germinate and plant them. Genetic, mutation, environment, or deficiency? idk but it would be nice to have some data/studies correlating this as it seems very common.

GroErr said:

There's been a lot of talk about it recently. I've certainly noticed certain strains/phenos tend to get purple stems regularly. Haven't really been concerned about it as long as the overall health of the plant is good.

What about seedlings that pop from day 1 with purple/red stems? Again, not all, only certain strains/phenos and I use the same methods to germinate and plant them. Genetic, mutation, environment, or deficiency? idk but it would be nice to have some data/studies correlating this as it seems very common.

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This is exactly right. If it were a problem, you'd also have bright yellow leaves with red veins, meaning it's nitrogen deficiency. If it's not that, and no sign of tox or def, it's genetics, and a good thing. Let it be. My HWFP has red stems, leaf portions, and veins, but is completely healthy.

Olive Drab Green said:

This is exactly right. If it were a problem, you'd also have bright yellow leaves with red veins, meaning it's nitrogen deficiency. If it's not that, and no sign of tox or def, it's genetics, and a good thing. Let it be. My HWFP has red stems, leaf portions, and veins, but is completely healthy.

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Agreed, I don't see it as a problem if nothing else is showing defs or deteriorating plant health. I certainly don't sweat it and attribute most of it likely to do with genetics. It'd just be nice to know what causes it and I'm sure like most things, there's probably no single answer.

^^^ perfectly healthy specimen ^^^ Reason I mentioned the seedlings in a previous post is I just threw down a couple that popped about a week ago and they both had dark purple stems from the get go like yours above. They're growing fine and vigorous.

i always got told its a good thing, summat to encourage as long as the soil's good, i believe it's from the "Durban" strain but not sure and deffinately cant prove.
looking good Olive Drab Green.....sign of a steady watering hand

Thank you both, @pookat and @GroErr in no particular order.

I dunno how valid or reliable this is, but I'm told the purple on the sides of stems of more adult or late juvenile plants are "nutrient/hormone highways." Again, I have no idea how much validity is behind it, but this is what I've heard a few times, and it seems possible.

Sounds right, i got told its the THc precurser

pookat said:

Sounds right, i got told its the THc precurser

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Which is more specific and correlates, so maybe that's correct, but I've no evidence. I'll find some at some point.

Olive Drab Green said:

View attachment 3690913 View attachment 3690914

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You have a purple stem, i only do green stems irrelevant of strain. Sorry its a touch stretchy but its just one of a few ive been playing with nutrient wise.

churchhaze said:

Experimenting with different levels of iron is something that actually makes sense compared to a lot of the stuff people have been trying recently. The difference between a barely noticeable iron deficiency and sufficient levels of iron is huge. Careful with too much iron though or you could bump into problems.

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Thankyou, ive worked down the list of nutrients and tried to observe their differences.

O D Green...Same here bud, i do find purple stem stuff gives a different smoke level to non purple stuff grown at the same time, just in a different place under the lights or near the door, could be many factors.
Kingrow1..Bank up the stem....put soil around it, it''ll root, Bank up only up to the round leaves.

I think suppressing the genetic purpling might create a detriment, at least as far as positive genetic extra traits you look for when selecting strain go.

No scientific evidence to support, but I've got a feeling.

go with the feeling
always found it with Durban, probly why i like them

pookat said:

go with the feeling
always found it with Durban, probly why i like them

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Durban Poison and Sour Diesel are two of my top favorites, along with Blue Dream. I like pure sativas and sativa-dominant hybrids, and especially landrace strains.