Monkey Grass, also known as Liriope muscari, is an evergreen grass-like perennial that can be planted in most temperate climates. For optimal growth, plant Monkey Grass in early spring, when the risk of frost has passed and the soil is warm enough for growth.
This typically takes place from mid-March to mid-May, depending on location, climate, and zone. It is always a good idea to check the USDA Hardiness Zone for your particular area before planting any type of grass.