Generally how tall does it take to get 1 oz.

At 1 foot can it produce a ounce in flowering ?

well it depends on a bunch of different things bro node spacing nutes ect but ive pulled an ounce off a foot tall plant in a party cup but u usually dont tell by lookin at how tall the plant is. are you shure its a female

like pitbudz said it depends. There are so many variables when growing (such as light, soil, ventilation) that estimated yield is incredibly hard to predict. If you have all of the right conditions and tons of light, yes you can. Just keep those buds as dense as possible.