That's the norm for most soils. 5-6 weeks before you need nutes.
Without adding dry ammendments you will need nutes come flower regardless of what soil you are using.
Have u red up on this one. Apparently it last for entire grow. If it runs or of N by week 5 that’s seems fine for no N needed in flower. What about the P and K ?
I just did yea. Nothing last the entire grow without assistance. You will need n as well. Don't just exclude nitrogen in flower.
The plants need N the whole time, just less after stretch. That's when they want more P and K. Don't plan on it lasting the whole grow without any other inputs. It would work if you had a small plant in a big pot though.
What about autos ?
Autos need the same nutrients regulars do.
