Because of their color, many green lawn weeds blend right in with their surroundings and without close observation may go unnoticed. More colorful lawn weeds, however, are quite easy to see due to their bright, colored flowers and shapely leaves.
The dandelion (Taraxacum officinale) is a winter perennial and can grow from 2 inches to 18 inches tall. It has leaves that grow ground level from the plant's central stem (called a basal rosette) and are 3 inches to 12 inches long and ½ to 2 ½ inches wide. It produces a bright yellow flower on a singular stem that turns into a delicate white puff ball which disperses the seeds into the wind when it is blown upon. Interestingly, although it is the bane of homeowners, all parts of the dandelion are edible and it can be put into salads or even made into wine. If physically removed, all parts of the root must be taken or the dandelion can grow from the remaining root sections. If use of a herbicide is desired, a post-emergent should be applied after germination while the plant is young and still growing. The dandelion is found in almost all areas of the United States.
The English daisy (Bellis perennis) is a spreading perennial that grows from 4 inches to 6 inches tall and, although it is considered a weed, is also commonly planted in many gardens. It produces white flowers with yellow centers and may be seen blooming from late spring to mid-fall. The English daisy can be removed from lawns with a gardening tool; however, a digging tool specifically designed for this type of removal will help keep damage to the area around it to a minimum. If a herbicide is preferred, a post-emergent should be applied to plants that are actively growing and have not yet reached the flower stage. The English daisy is considered a serious problem for the northwest portion of the United States, but is also found in much of the Northeast and the South.
The redstem filaree (Erodium cicutarium) is a winter annual that grows from 4 inches to 20 inches in height and is a member of the gernium family. Its has individual, sharply-cut, lance-shaped leaves that divide into three to nine leaflets and grow outward from a basal rosette. The filaree has hairy red stems and produces five-petal, pink-to-purplish-colored flowers that grow in clusters at the end of long stalks. When physically removing the filaree, it should be dug up as soon as it is seen, or a post-emergent herbicide can be applied prior to the flower stage. Filaree can be found in Canada and most of the United States. It is most commonly found on the West Coast.