Im not calling you out. Your talking about trying out doors for the first time. I am trying to give you an idea so you dont get down. I could give you a number you want. 35 pounds. Out door is easy. Yes, but a lot can go wrong and soil mix nutes and not over mix and nute just like indoors. If you are a pro outdoors iike a lot are.. Then I would not have said some thing like that - nor would you have asked what we think. Like I said I am just trying to give you an idea of what could happen. This is real life and out doors. SO much can go on, and rippers are a real thing to think about.
Like I said I was trying to open your mind to out door. The main issue is people, not growing.
I will leave you alone now. So sorry for answering your question.
Peace out!