I grew outside when I lived in a more temperate region . . . .notice the outdoory word "rodekyll." I preferred it for a lot or reasons. Up here though, we have a very short growing season, avg temp of about 42f, and 100+ inches of rain a year. I've gotten plants to begin budding outside, but never to finish. If I was growing outside, I would not hesitate to use organic ferts. I'm making compost right now from plant clippings, fish carcasses, seaweed, and just about everything from the indoor garden that isn't smokable. I'll use it outside though . . .