Broadleaf Weeds

Dandelion

Dandelions are a perennial broadleaf weed. They usually germinate in the fall, and go to seed the following spring. This weed is a very prolific seed producer that can infest a lawn relatively quickly. Dandelions can be easily controlled with post-emergent applications of broadleaf weed control products. As is the case with all weed management, tall mowing is a big help in controlling this weed.

Common Chickweed

Common Chickweed is a winter annual broadleaf weed. It germinates in the fall, and completes it's life cycle the following spring. It is most aggressive in shady areas. Like most winter annuals It can be tough to control because it thrives when the weather is cool, and weed control products aren't usually as effective in cool weather. Fall is a good time to control this plant, but some follow-up treatments may be necessary in spring.

Henbit

Henbit is a winter annual broadleaf weed. Almost all the information on chickweed applies to this weed as well. It does feature a fairly large purple flower. These plants often produce a mass of short-lived purple blooms in wild areas. They have a square stem, which indicates they are a member of the mint family.

Speedwell

Speedwell is a perennial broadleaf weed. It spreads rapidly, and is very difficult to control. Speedwell seems to be more common in zoysia lawns. Effective control may require multiple applications to control.

Broadleaf Plantain

Broadleaf Plantain is a perennial broadleaf weed. It tends to occur in compacted areas. It is not very common in a residential lawn, but it becomes more common as you get away from residential areas. It is controlled with post-emergent broadleaf weed products.

Narrow Leaf Plantain

Narrow Leaf Plantain is a perennial broadleaf weed. It is a bit more common in residential lawns than Broadleaf Plantain. It seems to be a bit tenacious, and often requires a follow-up treatment.

Spurge

Spurge is a summer annual broadleaf weed. It is a plant that shows up in mid-late summer, and usually is very aggressive along compacted edges, and thin areas. Pre-emergent products provide some control of this weed, but post-emergent treatments are often necessary. Tall mowing and a thick lawn help control this weed.

Oxalis

Oxalis is a summer annual broadleaf weed. It shows up in early summer, and has bright yellow flowers. Pre-emergent products can help control this plant. As with all weeds, tall mowing is helpful. Existing populations can be controlled with post-emergent broadleaf weed products.

Purslane

Purslane is a summer annual broadleaf weed. It thrives in hot weather, and can be tough to control. It is aggressive in late summer, but not as invasive as spurge. It has very thick and fleshy leaves and stems. Purslane generally shows up along lawn edges, or in thin areas.

Ground Ivy

Ground Ivy is a perennial broadleaf weed. It is aggressive in shady areas, and is among the toughest of weeds to control. It can rapidly cover shady areas if left unchecked. It usually requires multiple applications of special herbicides to obtain satisfactory control.

Wild Violet

Wild Violet is a perennial broadleaf weed. The description for Ground Ivy applies to this plant as well. It produces purple flowers in summer. It is a tough weed to control, and requires multiple applications to eradicate.

White Clover

White Clover is a perennial broadleaf weed. It seems to be most troublesome when we have a wet spring. It forms dense patches, and produces white flowers that often are below the mowing height, and thus persistent in the lawn. We now have broadleaf weed control products that do well on clover, but sequential treatments are usually necessary.

Black Medic

Black Medic is an annual broadleaf weed. It somewhat resembles clover. It has small yellow flowers, and is a fairly common weed in the home lawn.

Poison Ivy

Poison Ivy is a perennial broadleaf weed. It is actually a woody plant, and can grow quite tall in the wild. It can be controlled with persistent applications of broadleaf weed control. Round Up is also effective on this plant. It is more aggressive in shady areas.

Wild Onion

Wild onions are winter annuals. They are among the first weeds to appear in early spring. They can appear in any lawn, but are especially noticeable in Zoysia lawns. These weeds can infest dormant Zoysia lawns long before the Zoysia mowing season begins. They are difficult to eliminate with herbicides, but regular mowing helps control them. They do not survive very long into the spring growing season, so are usually not considered a serious problem.

Nimblewill

Nimblewill is a perennial weed that resembles Bermudagrass. It has thin, flat, leaves with four veins on the upper surface; its leaves are usually less than 2 inches long. The hard, thin stems often lie flat on the ground near the base and become upright farther up the stem. The shoots root at the lower nodes. Nimblewill goes dormant and turns brown at the first frost and is very slow to green up in the spring. The brown patches seen in lawns in the early spring may be nimblewill contamination. Spread is mostly due to seeds produced in the early fall. This weed is difficult to eliminate without using a total eradicant.