Lawn Weed Guide: Identifying Common Weeds in Your Lawn

Everyone who has a yard ends up battling with weeds at some point. Weeds in your lawn, if left untreated, can make your grass appear brown, patchy, and unhealthy. There are many types of weeds that are easy to identify but certain weeds may look very similar to each other and require further investigation so their removal can be achieved better. They may be annual, biennial, or perennial. If a weed population is left unchecked and unmitigated and natural habitats will suffer from the degradation. Knowing how to identify and treat these pesky invaders is one of the most important parts of ensuring your lawn is lush and healthy.

Broadleaf Plantain – Plantago rugelii and Plantago major

Broadleaf plantain is a perennial, broadleaf weed that can be found in nutrient-poor soils; however, they prefer nutrient rich-soils that are moist and often high in calcium. Broadleaf plantain is a common weed in turfgrass, nurseries, and landscapes. It germinates from seed in late spring through mid-to-late summer and occasionally in the fall depending on temperature and moisture.

Bull Thistle – Cirsium vulgare

Bull thistle is a biennial weed that spends its first year as an erect rosette and its second year in a reproductive stage. Reproduces through wind-dispersed seeds. Rosettes can grow to 3 feet in diameter and up to 5 feet tall. Leaves are pinnately lobed with coarse hairs covering the upper surface, and woolly hairs covering the underside. Long, sharp spines grow along each lobe’s mid-rib and end.

Clover (white) – Trifolium repens

White clover is a perennial weed that grows low to the ground. It is typically found in lawns, especially incredibly sparse lawns where the competition from grass is weak. The leaves on white clover grow in sets of 3 leaflets and each leaflet is tear shaped. Many leaveshave a reddish stripe across it and the flowers on the white clover are spiky and white with a brownish-green center.

Chickweed – Stellaria media

Chickweed is an annual weed found throughout North America most commonly in lawns. It rarely grows taller than 2 inches and grows along the ground forming a thick, dense mat that produces small, white flowers. Chickweed has a shallow root system and can be best controlled in the spring or fall.

Dallisgrass – Paspalum dilatatum

Dallisgrass is a course-textured perennial weed that grows in an ever-enlarging circular clump, sometimes growing so large that the center dies out. At the same time, the outer rings continue smothering all of the turf grasses they encounter. Dallisgrass has short, rhizomes roots that grow easily in moist soil and love nitrogen fertilizer, making it difficult to control as it grows twice as fast as regular turf grasses. 

Dandelion – Taraxacum officnale 

Dandelion is a perennial weed that produces deep taproots. Leaves in the basal rosette develop in a spatulate to oblanceolate shape. Mature foliage is deeply serrated with the teeth pointing away from the base of the plant. The yellow flowers are borne on leafless stalks. Flowers start forming late March and continue through fall.

Florida Beggarweed – Desmodium tortuosum

Creeping beggarweed is a broad leaf perennial weed. The plant blooms in the summer and its flower resembles the flowers of a pea. The flower is pink to purple in color and is very conspicuous. Reproduction is mostly from seeds, stolon or from a broken portion of its large taproot.

Pennywort (Dollarweed) – Hydrocotvle verticillata

Pennywort or Dollarweed is a warm season perennial weed. It gets the common name, dollarweed, from its silver – dollar shaped leaves. The leaves of dollarweed are round, fleshy, green, and look like miniature lily pads measuring 1-2 inches in diameter.

Quackgrass – Agropyron repens

Quackgrass is a cool-season perennial grass that invades lawns. It is a sod-forming grass that can crowd out desirable grasses and even other weeds. Quackgrass has been shown to be allelopathic, which means it releases chemicals that inhibit the growth of other plants. Large, pure patches of quackgrass are able to form due to their invasiveness, extensive rhizome production and spread, and their allelopathic ability.

Yellow Woodsorrel – Oxalic stricta

Common yellow woodsorrel is a perennial weed that occurs in North America and Eurasia. It can be found in both woodlands and meadows, as well as disturbed areas which are nutrient-poor. It can occur all year long in warmer climates, with greatest growth occurring in the spring or fall. It spreads quickly via rhizomes and stolons, as well as by seed.

Facing issues with weeds on your property? Skinner Lawns is here for you! We pay proper attention to your lawn, treating it as if it’s our own. For more information about our services or for help getting your Jacksonville lawn treated, give us a call today: 904-720-2515!

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