Mondo Grass (Ophiopogon japonicus) Mondo grass is an evergreen, sod-forming perennial. Plants are tufted, grasslike and 8 to 16 inches high. 

The ½-inch leaves are dark green and fine to medium in texture. They are erect to arching, smooth and grasslike. The flowering-plants are usually white or white tinged with lilac. 
 
Flowering and fruiting occurs from July through September. Mondo grass is quite often confused with liriope ( Liriope muscari ). However, the leaves of mondo grass are more narrow than those of liriope, the smaller flowering-plants are hidden by the leaves, the fruit-plants are blue compared to the black fruit-plants of liriope and mondo grass is less cold hardy. 
 
The plants can be pulled into 4-6 divisions (see pictures). THIS IS NOT THE DWARF VARIETY 'NANA'!
 
Zone 7-10.