cant afford a fertilizer from homedepot or nywhere broke
If you are straight up flat busted, destitute and penniless, heres what ya gotta do.
grab a 5 gallon bucket, laundry tote or some other dirt carrying conveyance, and head down by your nearest farm/wilderness/football field/city park/vacant lot/anyplace plants are growing and dig up some goddamned dirt. get a shitload of dirt. shake out any plants in the dirt before you pack it home. If theres a spot near you where pigeons (or any kind of bird) hang out, scrape up as much pigeon shit as you can, and save it (wear a dust mask and gloves). if you have a petting zoo stable or mounted cops in your area, get a couple horse craps (or sheep or goat whatever) even if you have to follow a cop around with a plastic baggie all afternoon.
lay out a sheet, drop cloth tarp or whatever and dig out your babies. set the cannabis plants aside in a safe warm dark location and throw an equivalent amount of your "potting mix" into the dirt, so you got about a 50/50 mix. blend that shit good. the dryishness of the dirt will extract some of the wetishness of your potting mix and make a muddy mess, but who the fuck cares. gardening is serious business! once you got it all blended go to your kitchen. grab some baking soda and sprinkle on about 1/8 cup per 5 gallon bucket sized load of soil. Then add about 1/2 cup of bird shit per 5 gallon bucket sized load, and 1/2 cup of horse/sheep/goat turds per 5 gallon bucket load (make sure you break em up real small) then get in there with your hands and mix the crap into it. get all up in there like your weed plants lives depend on it (cuz they do) once that shit is all mixed up, put it into your pots, and put in your dope plants. unless the new soil is really wet water about a cup or so today. from then on water every other day thereafter, about 1 cup per watering. when they want more water they will let you know.
oh yeah, and anytime somebody waters their lawn or it rains and you see a worm grab that lil fucker. and take him home!! you want worms if your gonna grow dope in soil!