Stems are purple

Dodgey99

Well-Known Member
People say that a lot, but it's not always true. Mine are pointing straight up (never happened before) and some stems are going purple - and they are not growing at all. Pistil production has ceased, just more and more white hairs.

Currently testing if they got too cold as cold stops growth, and is known to cause stem purpling. I'v enow got a heater in keepin the overnight minimum to 15c
 

Dodgey99

Well-Known Member
What I mean is the actualy "bud parts". usually they keep growing, and joinign together to make bigger buds. They have stopped growing , spreading, getting bigger, yet, the white hairs that come out of them are still multiplying. It's most odd. Grown the same strain many times.

By this time the buds are usually fist sized. Currently they are so small I'd have a job to harvest them.
 

ChiefRunningPhist

Well-Known Member
What I mean is the actualy "bud parts". usually they keep growing, and joinign together to make bigger buds. They have stopped growing , spreading, getting bigger, yet, the white hairs that come out of them are still multiplying. It's most odd. Grown the same strain many times.

By this time the buds are usually fist sized. Currently they are so small I'd have a job to harvest them.
Pic?
 

ChiefRunningPhist

Well-Known Member
The fan leaves have went from being fat to this size and my stems have turned a violet color and they're also sticking up in the air like they're praying. Can anyone tell me what this is and how to fix it quick
Purple stems can be a Mg deficiency but your leaves look good. Some strains genetically have purple stems. Cold night temperatures can make purple stems too.

I see a pretty healthy plant. Good job.
 

Dodgey99

Well-Known Member
Sorry to thread hijack. To the OP - I agree - they look healthy, that's for sure.

Below are 5 photos, taken one a day, if you download them you can then cycle through them quickly and see the growth (or lack of). These should all be huge by now. I thought you only needed to heat the NFT reservoir, not the room itself, and have got away with it before, but ive never grown when its been this cold for so long. I think I've ruined the crop. Can't see a mad burst of growth happening in 2 weeks. But then again, no orange hairs, so they haven't matured at all.

1.jpg 1.jpg 2.jpg 3.jpg 4.jpg 5.jpg
 

ChiefRunningPhist

Well-Known Member
Sorry to thread hijack. To the OP - I agree - they look healthy, that's for sure.

Below are 5 photos, taken one a day, if you download them you can then cycle through them quickly and see the growth (or lack of). These should all be huge by now. I thought you only needed to heat the NFT reservoir, not the room itself, and have got away with it before, but ive never grown when its been this cold for so long. I think I've ruined the crop. Can't see a mad burst of growth happening in 2 weeks. But then again, no orange hairs, so they haven't matured at all.

View attachment 4275879 View attachment 4275879 View attachment 4275880 View attachment 4275881 View attachment 4275882 View attachment 4275883
I've grown in cold and they just take long to finish. Looks like they doing just fine to me. I grew a sativa that took 14wks to flower due to low temps
 
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