Pinus koraiensis ‘Blue Ball’ (syn. ‘Böhlje HB’) – spherical variation of Korean pine reaches 60 cm diameter in 10 years;
- soft and blue needles,
- requires permeable and humous soils. Grows well in sunlit and partly shaded positions,
- recommended for home gardens, containers and for balconies,
Variation found as a witches’ broom on Pinus koraiensis ‘Silveray’.