I have planted three tree lines the length of my property. I added amendments when planting and have lovingly supplied them with water. At this altitude ( 6,500) my more mature oaks ( majority of the trees I have planted) are just now exhibiting some growth characteristics.
With the limited growing season here ( 5a) at this altitude is there some type of fertilizer which will cause these trees to grow faster? I appreciate the fact that most survived the -27 degree cold snap which set some records here last winter. Is anyone aware of the exact formulation for some of the more popular fertilizers commonly available?