My friends that are short on space, they live way out in the country with tons of public land around them. I tried to tell him man, just go scout out some public land in the middle of nowhere. As long as its not deer season with tons of people hunting on it, its going to be dead. It'll be dead until at least the first solid frost when you can start hunting rabbit and squirrel. Go find a couple little clearings, mark the locations on your phone, and plant a couple autoflowers in each area. If it gets real dry, you might have to walk in with a couple 5 gallon buckets.
90% of people who would walk past won't even notice.
9% of the rest would be too afraid someone else is watching or would find out who did it.
Its only a risk when you are on your final hike out with the flower, before then if you get caught its just plausible deniability I was out trailblazing and holy shit check out these pot plants I found, Mr. DNR Officer.