'Seiun kaku' has a tightly layering habit, which makes the leaves look like shingles on a roof. This appearance makes 'Seiun kaku' look like a more vigorous form of 'Mikawa yatsubusa'. The chartreuse green foliage in the spring turns to a darker green by the summer. Fall color on 'Seiun kaku' is a bright fiery red.
In a container, 'Seiun kaku' is a small slower growing dwarf, while in the ground, 'Seiun kaku' may reach 8-10 ft in 15 years.
