yo dude i have done it before i grew 3 plants in my yard trained them with rope to go around my hedges near pool used nothinG but water and dog shit,however i used only dry brittle sun bleachEd shiT that seemed close to breaking down completely ,its also alot less fouling odors,and i also have urinated in small amounts in soil only ofcoUrse NOT ON BUD right before watering,serious shit i t works real well, i did start with doLlar store potting soil,but those girls got huge,real long,i sold the finish product as high grade canNabis,real sticky indica bag seed.THE SHIT WAS SUPPLIED BY MY DOGS,THE PITBULLS,LOL.