Vance Wood
Lord Mugo
I've just completed my second repotting intensive at Boon's. Boon posted on Facebook a tree I was repotting that had been half barerooted the previous year. This year I did the other half.
It was in an Anderson pot. Last year, it was lifted from the flat, and the roots were barerooted by washing them out with a gentle stream of water. Then replaced into the flat and potted up with Boon Mix soil. The roots weren't worked.
This year, I barerooted the other half, and reduced the rootball to pot into a bonsai container.
When I lifted the tree from the Anderson pot, the difference in the two halfs was remarkable! The half that was in Boon mix was white with mychorazzae, which is a good thing. Full of healthy feeder roots. The half with old soil was brown, mushy, and compacted.
I'd post a pic, but I'm posting on my iPhone from the airport, but you can find it on Boon's Facebook page.
A good example of developing a root system methodically.