I have bred MJ seed for well over 20 years, regular and feminized. Growing MJ is fairly easy when someone with experience helps you out. Indoor cultivation can be rough on a noob, but just about anyone that maintains a vegetable garden can grow outdoors. It is after all a weed. We’re many fail is growing in native soil, if you don’t have rich composted soil in your garden or backyard your finished product will not be all that great.
Build an above ground pot, you will want to figure out how big a plant you want to grow, which you can do by adjusting the time of the year you plant. Do you want a 6-8 ft yielding 4-6 lbs, or a 3-4 ft yielding 1-2 lbs, planting late may to early June produces a huge plant which requires a 200 gallon above ground pot, plant mid July and you can grow in a 50 gallon pot, even smaller if you have a good understanding of nutrient requirements.
Building a pot is nothing more than using fencing in a circle, and lining it with ground cloth, breaths very well and lots of oxygen to the roots. Use the best bagged soil you can afford, I would recommend FoxFarm Ocean Forest, very good stuff, and if you have a good sized pot, you won’t need nutrients to finish out the plant.
Water 10% of pot size, twice a week at the first month, once roots are established, once a week should be sufficient depending on your climate, desert areas obviously need a bit more. You can see when water is needed as the main fan leaves will droop. Don’t baby the plants, as in over water or over fertilize. Just let um go and they will be fine.
And that’s about it