rogressions of my trees.  Juniper Twin Trunk.
P
Staselwood Bonsai Studio
Newark, Ohio
740-403-0215  ~  www.staselwoodbonsai.com
Nursery Stock Juniper.  Exact species unknown.
In deciding which side to remove, I notice that they are two complete
trees.  Both of which are interesting and worth the effort to try and
separate.
With my wifes help we get out the chisel and hammer to break them
apart.  A few hard hits and the fuse is broke.
The remainder of the root ball is cut in two with a sawz-all.
After the two trees are cut apart, you can see the small area that was
fused together.
I applied some cut paste to help the fresh cut seal and heal.
As seen in this picture, you then put the "halfed" tree into the pot and
backfill the other side with bonsai soil.  This was done with both tree
halves.  This was done in 2006 and both are doing fine.  Don't forget to
wire the tree into the pot to prevent moving around.  You don't want to
harm the new hair roots.
This method can also be used to with Junipers if you have a nursery
stock plant and its in a large container.  Remove the soil from one side
of the rootball and plant into bonsai soil.  The in the following year, doe
the same for the other.  This will reduce the shock to the plant.