From spring to fall, a weed with bright yellow flowers blooms in the lawn. In some Southern states it may bloom all winter. Flower stems grow 2 to 10 inches above the plants. The leaves are deeply lobed along the sides. Dandelion is the most common and easily identified weed in the U.S. Its taproot grows 2 to 3 feet deep in the soil, surviving even the severest winters. In early spring, new sprouts emerge from the taproot. As the yellow flowers mature, they form white "puff balls'' containing seeds that the wind carries for miles to other lawns.
Feed the grass adequately to keep it dense. Mow frequently enough to keep the flowers from becoming seedheads. Hand-digging and removal is not only time-consuming and tedious, but also impractical because pieces of root broken off and left in the soil will sprout into new plants.
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