USDA Hardiness Zones
Liriope grows in U.S. Department of Agriculture plant hardiness zones 5 through 11a. Although it can withstand some parts of USDA zone 5, it is not able to live through colder winters in the northern parts of this zone. However, the right climate zone for your liriope plant depends on the species and cultivar that you want to grow. USDA zones 7, 8, 9, 10, and 11a are the right climate for growing Liriope muscari cultivars such as the “Aztec,” “Christmas Tree,” “Evergreen Giant,” “Webster Wideleaf” and the “Royal Purple.”
Warm Climates
Warm climates are ideal for liriope. The plant is widely cultivated in the southern United States because it thrives in warm weather and tolerates humidity. It also does well in temperate, coastal environments. In these climates, Liriope remains evergreen throughout the seasons. While liriope requires regular water, particularly hot climates increase the plant’s hydration needs.