Pulaski County Daily News added a post from January 9 at 3:00pm to their timeline. Â· January 9 at 3:00pm Â· Oak Grove, MO Â· Live blog of the St. Robert City Council.
1 For moderate smokers it is 1-2 weeks. Frequent users can test positive more than 2 weeks, and in rare cases marijuana can stay in the system of heavy smokers more than a month.  Hair. This kind of test is less common and key factors do not have any impact on its marijuana detection time.
How long does marijuana stay in your system once smoked? How do you determine how long weed will stay in your system when doing a drug test or a hair folicle test I am 5'4, weighing 335 lbs hoping that helps.