Why did my flowers and some flower near petioles t...

Nothing to worry about it's genetics. Your going to have some good purple bud. And the cold temps your growing in likes to bring out the nice colors from your Gene. And what I mean by genetics is your ak 47 parents. Good luck

Looks like genetic but could also be a result of cold temps, nothing to be worried about :)

It's all down to genetics and phenotypes....you could grow 5 seeds of this ak47 and they may all turn out different. It's like dominant and recessive genes in humans, occasionally the offspring will pop up with blue eyes vs green eyes....same idea with plants. Typically if you get purple buds it'll spread to the closest sugar leaves. Also the fact that you're growing outdoors the cold and the humidity can have very strong effects on colors. Happy growing ✌️

It's all about genetics man. I've grown a few strains where whole buds have gone purple by week 6 or 7 of flowering. Its nothing bad and actually give the plant a pretty cool look. Usually, the purple color will come out if the temps get on the cold side overnight or during the dark part of your light cycle. So don't worry, be happy you got a pretty phenotype.

Original AK47 strain is a hybrid of mostly sativa and indica. Different breeders have used different genetics to create their versions of AK47. Since we are dealing with seeds there could be many individual phenotypes. It looks like your lucky and got a purple phenotype who doesn't like purple bud. Purple AK 47 is not some thing that is unheard of it's just the luck of the draw or a genetic throwback. Hope this helps.

Obviously your plant have some purple genetic inside.