Outside?

Hi everyone, I just started to grow recently but I've been told that you have to buy nutrient water to water plants thats you're growing outside. Can't you just use rain water?

Also, I have read the guides and such but I don't have money to go buy ALL of the things listed, what are the most important for growing outside? Any Basics? Difficulty?

#StateFarm:rasta:HighTimes

If you build up your soil with then you don't need nutrient water. Rainwater is good. Soil preparation is really what's important for growing outside.

Are you growing in the soil or in a container? If in the ground; The plants will get nutrients from the natural soil but prob not enough though. I have some plants going in the ground and feed them nutes once or twice a week.