It is a forest planting of eleven Foemina junipers (Juniperus chinensis 'Foemina'), the earliest of which Naka began training into bonsai in 1948.
Naka began working with the first two of the eleven trees that would ultimately make up Goshin in 1948; he created a "two-tree style" composition using two Foeminia junipers of equal height.
Inspired by a forest of Cryptomeria japonica near a shrine in Japan, Naka first combined the four trees he had already developed into a single, 4-foot-tall (1.2 m) composition.
Naka also had to modify the pot to ensure adequate drainage—the lack of which caused one of the trees, and its repeated replacements, to die.
[4] Naka returned frequently to Washington to check in on and supervise maintenance of Goshin, including extensive work in 1999.