When will it look like weed?

How old do most marijuana plants have to be for other people recognize that it is weed?

 

that really depends on who is looking at it. i have a friend who saw one of my three month old plants and had no idea it was ganja. I myself can tell when it is only a few day old seedling. it truely depends on how knowlegable the person looking at it is. hope that answers your question.

 

i guess as soon as the leaves start looking like pot leaves, my mom called me out on a plant in our backyard when it was only about 6-7 inches tall