this seems like overthinking to me, and it doesnt seem to be working, i prefer to keep it simple
"Awesome, glad you swung by, this is what I rotate on all my conifers...except I usually omit the 2 acidic ferts for shimpaku...
often supplementing in ProTekt 0-0-3 with silicone to aid with transpiration, and Superthrive,(and K-L-N for newly potted)...
Miracle Gro or (generic 24-8-16)
MirAcid 30-10-10
Alaska fish fertilizer 5-1-1
Fish and Seaweed 2-3-1
Dyna Gro 7-9-5
Espoma Holly-Tone acidic 4-3-4
Plant Tone 5-3-3
Not in that order as I switch between using lower N during the hottest months
and every other week I use the higher N weather permitting.
I guess I need to rethink offering trees at all stages the same food though I really have nothing near finished
so I hope I'm not working against myself here too bad. Thing here to consider as well, this rotation applies
to my conifers and this is my 1st year getting back into maples.
When you say 12-1-4 is balanced to the needs of the tree, is that maples in general in an acid rain environment?
It looks like of all the foods I listed, the generic Miracle Gro is the closest is analysis doubling the concentration that I use.
Since Mothers Day is deemed our last frost chance, and the latest pre-emergence should be applied to the lawn
I figure the tree will be in green leaf and growing by then, why I suggested I'd begin feeding after frosts. Is that a fair assumption?"