7 diff strains but why they all blue??

heres the low-down,,, i dont have a camera,
i have 7 different strains outdoors, its been raining for most of the last 2 months, the tops on all 7 strains is turning purple ,,

what is causing this? ive read about lack of P
or is it the moisture stress???

they are entering flowering in a week or two
theres gotta be someone out there that can help??

temperature is usually the reason for that the temp drops so drastically and it gives hints of blue starting at the top look at my second grow you can see a blue plant i think the pics are still there

heathaa said:

temperature is usually the reason for that the temp drops so drastically and it gives hints of blue starting at the top look at my second grow you can see a blue plant i think the pics are still there

Click to expand...

thanks duude!! i apreciate the help