[9] It produces many white flowers in a round cluster (umbel) on stalks 25 to 60 cm (10 to 24 in) tall.[4] It grows in slowly expanding perennial clumps, but also readily sprouts from seed. In warmer areas (USDA zone 8 and warmer), garlic chives may remain green all year round. In cold areas (USDA zones 7 to 4b), leaves and stalks completely die back to the ground, and resprout from roots or rhizomes in the spring.[10]