This perennial plant is about 6-18" tall, consisting of an erect to spreading rosette of basal leaves that develop from clustered bulbs. The basal leaves are linear-filiform, hollow, glabrous, and somewhat glaucous. Some of the larger leaves may bend downward toward the middle. One or more flowering stalks develop within the basal leaves. These stalks are more or less erect and slightly taller than the surrounding leaves. They are usually leafless, although 1-2 cauline leaves may develop from an individual stalk. At the apex of each stalk, there is an umbel of pink or lavender flowers up to 1½" across. This umbel is spheroid and densely crowded with flowers. Each flower is up to ½" long, consisting of 6 lanceolate tepals that bend outward at their tips. There is a burgundy or purple longitudinal line along the length of each tepal. The slender pedicels are up to ¼" long and shorter than the tepals. Both the foliage and flowers have an onion-like aroma. The blooming period occurs during late spring and lasts about 3 weeks. Each flower is replaced by a 3-valved seed capsule that contains several seeds. The seeds are small and light enough to be blown about by the wind. The root system consists of slender bulbs about 1" long with membranous outer coats. They form abundant offsets and have coarse fibrous roots underneath. Chives often forms tight clumps of plants. The preference is full or partial sun, moist to mesic conditions, and a fertile loamy soil. This species has few problems with insect pests or disease. It is winter hardy and long-lived.
Wild Chives - Allium schoenoprasum - Encyclopedia of Life, http://eol.org/pages/1084938/details (accessed January 27, 2017).