A bulb-forming weed with a strong garlic smell that pops up bright green in dormant lawns and can take years to fully clear.

Round, hollow leaves with a noticeable garlic smell when cut or mowed. It sends up flowers and also small bulblets on top of the stalk, which is how you tell it apart from wild onion. The bright green shoots really stand out against brown, dormant turf.
Often mistaken for: Wild onion (which has no bulblets on the stalk)
Shows up as bright green growth from fall through spring while the rest of the lawn is dormant. Fall, while it's actively growing, is the best time to deal with it.
Can grow in any home lawn type, including bermuda, centipede, St. Augustine, zoysia, tall fescue, and Kentucky bluegrass.

A low-growing clover that spreads by creeping stems and thrives in lawns that aren't getting enough nitrogen.

A dandelion look-alike that pops up in thin or stressed lawns and flowers most of the growing season.

A tough perennial weed with pretty purple flowers that's notoriously hard to get rid of once established in a lawn.

A tough perennial weed that loves compacted, thin lawns and sticks around all year.