I am not as familiar with the fertilizer requirements side of things, but I did want to recommend diatomaceous earth in lieu of perlite/vermiculite for future mixes. I have put it in most of my mixes for trees, hanging baskets etc since I read Drew’s thread about it and I’ve not been disappointed.
I sourced my “optisorb” from grainger supply for around 12 bucks a bag. Based on threads here that is the largest available particle size. Napa floor dry is slightly smaller sized particles with more fines but possibly more readily available if you don’t have a grainger nearby.
I also used it to root my fig cuttings with about 10% coconut coir mixed in, with 100% takes so there are many uses.