Last Sunday, 3/9/2008, I started work on the San Jose Juniper I wrote about two months ago, 1/16/2008. Before taking it out of its pot, I trimmed back the branches to get a better idea of the material.
San Jose Juniper with Some of Branches Trimmed Away, about 3ft (1m) diameter

Root Mass

Cutting off Bottom Third of Root Mass

Root Mass Trimmed Back
After a couple of hours’ work I’ve cleaned out the root ball. There was no main tap root to the plant. In addition, the condition of the branching leads me to think that at one time, perhaps, someone had intended this plant to be a bonsai.
Juniper Replanted
I replant the tree in a 5 gallon container, which I’ve cut down. The planting mix, 50% decomposed granite and 50″ pine bark sieved to about 1/8″ (.3cm), is about 6″ (15cm) deep. I tilt up what will become the main trunk. This year I’ll let the plant rest. Next year I’ll begin aerial rooting some of the large branches to make some other bonsai.