Purple Fan Leaf Stems-Problem??

So I have an outdoor plant, but it is in a huge bucket, not in the ground. It has been growing GREAT for the last 12 weeks as I have been giving it small doses of fert, trying not to burn it out. After it reached about 4ft tall, I gradually started the 12/12 cycle by bringing it indoors in my dark room. It started flowering like crazy about 10 days ago so I changed the fert, giving her a 15-27-5 ratio fert. I left for the weekend and when I got home from the long weekend up north, there were tons more crazy white hairs everywhere and actual buds starting to show! One problem, the stems leading to my fan leaves are dotted with purple spots and some of the stems are turning completely purple...but just the stems leading to the fan leaves, nothing else. Anyone know what this is and how I can fix it if it is a problem??? Thanks all

I've had the same thing on a number of plants especially as it gets bigger.. i am not sure what it is but it has had no effect on my plants yet

Thanx Ralphie...it's my first grow and everything has been going great until this happened and I got nervous since this is a strawberry cough strain..(I got it for free) Anyway, thanks man

purple stem is a nute deficiency, nitrogen or phosphorus.

is it always a nute deficiency? I've been giving my plants plenty of nutes and I have this.. Maybe they need more?

nah man sometimes its just genetics cuz my plants are all from the same seed and i feed them all the same and a couple have purple stems and some don't , its no real problem as the buds are just as good

some are just purple but purple stems are a common sign of phosphorus def. they use a shit ton of it during flowering btw hope all goes well