>>2322573in a 1/2 gallon nursery pot I use 7 scoops of promix and 2 1/2 scoops of black kow. The black kow acts as a binder and as
>>2322590 said a fertilizer so you don't need to fertilize for quite some time.
a lot of youtube videos have the moisture wrong, you want it a little more wet than brownie batter. It should almost be like a non-Newtonian Fluid so when you slap it it firms up but then softens up when it sits.