Dandelion

Type: Broadleaf perennial

Size: 12 inches tall, 6 - 16 inches wide

Where It Grows: Lawns and gardens in sun or shade

Appearance: This common lawn weed has a strong taproot; leaves are deeply notched. Yellow flowers mature to puffballs. Dandelion seeds are like parachutes that fly away in the wind—they're the plants that you would blow on and "make a wish" when you were younger.

Lawn Weed Control Tip: Mulch to prevent dandelions in gardens. Pull dandelion weeds by hand or use a postemergence herbicide (designed for using on weeds after they appear) in lawns.