An onionlike weed with a characteristic garlic odor grows in the lawn. The leaves are slender, hollow, and round. The leaves join together at the lower half of the main stem, just above where it emerges from the base of an underground bulb. Greenish purple flowers bloom at the same height as the leaves. Wild garlic spreads rapidly through the lawn and is very difficult to control.
Frequent mowing in the spring helps reduce vigor and spread.