Pinus thunbergii ‘Shirome janome’

Pinus thunbergii ‘Shirome Janome’ is a distinctive Japanese black pine prized for its unusual variegation. The contrast is most noticeable on the young growth, where pale needles and lighter-colored shoots stand out against the deep green older foliage and dark, rugged bark characteristic of Japanese black pine. As the growth matures, the variegation becomes more subtle, giving the plant changing interest throughout the growing season.

Like the species, ‘Shirome Janome’ develops the strong structure and character that make Japanese black pines especially valued as specimen trees. Its unusual coloration makes it a standout in a conifer collection, Japanese-inspired garden, or mixed planting where the lighter foliage can provide contrast against darker evergreens.

Mature Size: Approximately 15–25’ tall × 10–15’ wide
Growth Rate: Moderate
USDA Zones: 5–8
Light: Full sun
Soil: Well-drained soil; adaptable once established
Uses: Specimen, conifer collection, Japanese gardens, bonsai, focal point

‘Shirome Janome’ is an excellent choice for collectors looking for a Japanese black pine with something distinctly different from the typical dark green form. Its seasonal flush of pale growth gives this cultivar much of its ornamental appeal while preserving the rugged character and evergreen structure of the species.