Petasites japonicus ssp. giganteus 'Nishiki-buki'
Variegated Japanese Butterbur
This Japanese groundcover is also grown as a vegetable.
Its large, variegated leaves can reach 18 inches in width.
Prefers full to part shade and moist to wet soil.
It can scorch and decline in hot, dry summer weather.
In ideal conditions it will spread aggressively in the garden.