Germinate em...Plant em!! Dude all you need is sun and water and regular soil(dirt).... you live in Aussy land... Well...sounds like your in a great climate for growing..It's really not hard to do..the whole Ph testing, Blah Blah..all these expensive soils and nutrients.It's all really great..and it helps make a better plant, Thats for indoor growers...I've never tested my Ph once..I used natural "earth dirt" well the spot I stuck em in was a mix of sand and loose soil...but it seem's to work good for stronger roots.
All I do is water them if we haven't gotten rain...So yeah if your growing outdoor..Just germinate the seeds..That might be the hardest thing you have to do next to harvesting it when its done..I just go and visit my plants..I do literally nothing to them. They have zero problems and are looking amazing. They are very tough plants and you'd have to seriously do something dumb to kill your plant....Like add'ing way to many nute's...Or moving it around to much and shocking the hell out of it...if left alone it will do what it has done for thousands of years, and that is grow big and strong...Plus if your buying some decent seeds you really done have to worry bout nutrients and what not...The genetics of the plant should take care of that...Your only problems should be like lack of water(which is easy to fix..imagine that)...maybe mold or mites..which are easily taken care of to.