I’m unsure of the species name of this plant, but my best guess is it is the Chinese privet, Ligustrum sinense. Privets belong to the olive family, Oleaceae. I bought its parent from Kuma Bonsai in San Diego on March 16, 2013. The parent plant died in the winter of 2018 but this sprig survived.
November 2, 2019: The tree today.
I think this is the sprig that eventually became this root-over-rock tree.
May 9, 2015: Attaching the tree to a rock with raffia.
May 9, 2015: My soil mix of scoria, pumice, akadama, and organic matter from a worm farm I feed with kitchen scraps. Recently I have been using less organic material in my mix.
April 6, 2016: The tree getting acquainted with its rock.
October 16, 2016: The tree after two summers of growth.
March 24, 2017: Thickening the trunk with long leaders.
April 2, 2017: Selecting the branches.
April 29, 2017: Less than a month of spring growth.
July 18, 2017: Continuing the process of growing and cutting back.
September 16, 2017: Monthly pruning. I occasionally added worm soil and other organic fertilizers to the surface of the medium.
September 30, 2017: Two weeks of growth.
December 9, 2017: Winter on the bonsai benches.
April 7, 2018: Repotting.
April 7, 2018: Good root growth but it hadn’t attached to the rock.
April 7, 2018: Re-attaching the roots with raffia.
April 7, 2018: Planted higher in the pot.
July 21, 2018: Three month’s growth.
July 21, 2018: Back to the clip and grow cycle.
June 15, 2019: A year later the raffia is decomposing.
June 23, 2019: The raffia removed.
June 26, 2019: Mid-summer.
September 26, 2019: The tree in the garden about five weeks ago.