Since a few weeks my ladies have purple stems, I t...

your plant is lacking in Cal mag I can see the yellowing leaves and thats cause of the Calcium and then the magnesium part of it is the red/purple stems . My advice to you is to go get yourself some cal mag . You will see your plants go back to a nice happy lush green and the stems will also revert back to being green and healthy.

From what I can see in your grow is that your plant is lacking in Calmag supplement . I can see the yellowing leaves and thats cause of the Calcium and then the magnesium part of it is the red/purple stems . My advice to you is to go get yourself some calmag and add it into your nutrient regime . You will see your plants go back to a nice happy lush green and the stems will also revert back to being green and healthy. What you have now are the classic classic signs of CalMg deficiency . Other then that your lady's are looking lovely and well on their way to building some nice medicine for you ! Happy Growing !

It could be strain related or possibly the starting of P deficiency. I'm doing Red Poison and she has purple stems without any other signs of deficiency. I also have another stain outdoors in a mixture of bad soil and she has the P deficiency... purple stems, signs of other deficiency... cal/mag and possible iron.... the purple stems were my first sign, then the leaves started yellow spots and such... I'm still extremely new at this so, I could be completely wrong on everything...lol Hope everything works out! 😁

Hey xam there are several things that can cause this including too low of temperature. I see that your night temp is 55 so this is going to be the cause of your purple stems. If you cannot bring them in at night then not much you can do other than cover them at night or just hope for warmer days. Hope this helps. Good luck