Purple stems on my cannabis plants still in vegatative stage.

Kingrow1

Well-Known Member
Anthocyanin is heavily studied, its linked to stress and has many causes, injury, nutrients, temperature, light intensity, oxygen scavaging, salt stress and drought to name the most common.

The context of the purpling again is complex, is it localized to a specific area, is it on the upper or lower leaf surfaces, the stems, has it just happened or has it been there since germination, new growth or old and so on.

Despite popular belief purple weed is not desirable, it adds nothing to the potency or smoke unlike it does a wine growers grapes where stress can enhance the final character and taste.

Too much magnesium is not good, a foliar feed migh negate the need for toxifying a good soil/res but thats assuming your nutrients dont already contain it. Not required in great amonts id certainly want to measure the ppm rather than trusting a spoonfull per bucket of water and even then i would just buy a complete fertilizer and save the hassle.

Nothing clears up purpling apart from getting everything spot on, green plants are more efficient than purple plants. If you bent a stem you might see some but only where and possibly above the damaged area is.




Well in your previous post you were being an ass and now your giving me a nice reply and not acting like an ass. Why didn't you just act this way in your first reply?
Thanks about the heat stress thing but that don't make much sense at all. I think you might just be messing around with me on that one but I believe you about stress can cause it.

The only thing I did was bend down my main stem to train it so it's not too tall. So it's had no stress, don't know what you think.
 

whitebb2727

Well-Known Member
Anthocyanin Is what causes purple or fall colors and it is not only caused by stress. It can be normal.

If the plant looks healthy I wouldn't worry about it.

High PK feeds will cause colors to.
 

tsmit420

Member
just transplanted into some really hot soil< didnt get long to compost either but i didn't have choice.. anyways the stems are so purple that when i topped. purple syrup started coming out and solidified into candy probably from glucose in stems but the plant don't look healthy its exhibiting magnesium and calcium deficiency
 
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