i used to do something simmilar when i was in high school, all we could get was shwag with tons of seeds so me and my buddies had thousands of seeds so in spring we walked all around town planting seeds, the best spots are places with their own irrigation such as librarys, the town square in front of the police station those flower pots that are by the gas pumps in front of gas stations, everywhere, i remember we were checking out our handywork and there was little plants all over the place, none ever made it to harvest or even close for that matter but there were some that got about 2 ft before they were ripped out, thats why back east what the dea spends lots of time on is chopping out wild hemp, it was grown durring ww2 and it still grows wild in some parts of the country yet the dea cant get rid of it because its such a hardy plant so yeah man plant away