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?
I like using Dr.Earth or Fox Farms organic fertilizers because they contain both soil bacteria & michorazae. I also use Nutri-paks from green as it gets, http://greenasitgets.com/index.php. This combo has worked well for my trees in western Colorado at 5900'.
You might also try throwing coffee grounds around your trees as the earth worms LOVE coffee grounds!