Dark purple stems

this is my second grow. The strain is blue whale. Og kush x blue dream. This is about 4 weeks in veg. It seems the veins of the main stems are a dark purple color as well as the large fan leaves. Is this a deficiency or toxicity of something?

What type of light are you using?

farmingfisherman said:

What type of light are you using?

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I am using a 110w led full spectrum I got from a local grow shop.

If the over all plant looks fine, I wouldn't worry so much.

Probably just a wee bit out of whack in the PH

This. If no other symptoms, forget it imo

Can you snap a picture of the entire plant? Sometimes purple stems can be a sign of malnutrition. Under LEDs plants have the tendency to use more nutrients.

Did they die

Indogrow420 said:

Did they die

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Lol. I see the purple with main stems during cloning when the plants aren't eating well, and on fan leaves once I start pushing flower over leafy growth, it's a very early sign your not dialed in, but some plants will show these signs on fan leaf stems almost no matter what you do. Purple main stem is not to good imo, tho some purple spots may stay on the stem from previous defiencys, look for new green growth.

Purple stems and leaves, ld say is the blue genetics coming through, they will darken more while in flower. Looks fine to me from what l could see. I get red stripes on leaf stems and stalks but its my strain showing boldness imo. Keep her growing and dont forget to post further into grow. Could feed one higher ppms if your growing a few, see if it takes it away, not sure though so ld play safe and keep on same road. Genetics can do strange shit. Its not always grower error, except in my case, l can kill the healthiest plant, and then bring back for a good harvest lol. Keep it up your ok, post in a week or so if no change. Dont stress the little things, they are all little things.