Acorus gramineus 'Variegatus' is an evergreen or semi-evergreen perennial aquatic grass (or at least grassy in appearance) or groundcover in the Acoraceae family with variegated, white and green foliage and yellow flowers in summer. It can grow 6 IN - 24 IN - wide, 6 IN - 12 IN - tall in zone 5a - 11. It contributes grassy texture to the garden.