Hi Boics
Maybe we have different species? as I don't do anything special with my MB and its a vigorous grower so Im not sure why yours would be slower
If it is exactly the same, it should be powering on. Slow and unhappy trees could be a sign of pest as I have observed with one of my prunuses that did not put on a show, produced only few wekk flowers very late in season.
If I had not put it in a bonsai pot and left it to grow freely, the branches would have packed on.
I did grow one sacrifice branch only for few months before it got bigger than what I needed compared to other branchlets (notice larger leaves in the photo and even larger ones t the tip but had been cut off)
My observation with my MB so far:
- very vigorous
- ramifies exceptionally well
- leaves reduces 1/6
- back buds easily from old wood (including trunk)
- no known pests or diseases
- full sun
- water well
- my mix 2 years ago was a simple combo of diatomite and zeolite. It's heavy so I think my zeolite ratio could be close to 50/50
- it seems happy with whatever i feed it.. currently in the basket is either chook poo pellets or dynamic lifter pellets
- I do rotate with liquids now and then being power feed, seasol or whatever else I have at the time
Other than that no magic or rabbits out of hats here.. hope that helps though. Check your tree for those little borer lavae