Weed Identification Directory w/Pictures

Welcome to our weed identification directory. Below we will list the most common as well as uncommon weed types that you will typically find in southern and northern lawns. All weeds are either classified as grassy weed or broadleaf weed.

They say “prevention is better than cure”, and the best way to get rid of weeds is to prevent them from growing in the first place. But if you are already embroiled in a weed battle, then you should learn about the common lawn and garden weeds, and what killers to use on them so that you can get rid of them effectively.

Annual Bluegrass – Grassy Weed

annual bluegrass weed

Annual Bluegrass is a grouping weed that grows in bunches. The leaves are in the bud which gives it a fan shape which is pleasant to look at. The seedhead is triangular in shape and can spread via the wind or animals walking through it. This is a winter annual weed that is usually easy to pull out of the ground and will die off once temperatures are over 70 degrees at night.

Field Bindweed (Convolvulus Arvensis) – Broadleaf

field bindweed
Flowering field bindweed or Convolvulus arvensis.

Field bindweed is considered one of the most daunting weeds to deal with, as it is difficult to control. A single bindweed plant can span more than 10 feet in a growing season and can be rooted for many years in the soil. 

Even though bindweed plant flowers are somewhat attractive, they can pose a big problem when they spread ruthlessly, generally in the late spring, and throughout the summer. 

Bindweed is a common weed across the U.S., but rarely seen in the Southeastern U.S., New Mexico, and Texas. Just like most other noxious weeds, the best control for bindweed is prevention or early intervention. If bindweed has wound its way into your lawn, the best way to eradicate it is with a glyphosate weedkiller such as one of our recommended weed killers.

Spectracide Weed & Grass Killer can be sprayed on driveways, walkways, and around trees and shrubs, and other areas in your yard. This fast action weed killer shows visible results in less than three hours, and comes with a money back guarantee. 

Common Chickweed (Stellaria Media) – Broadleaf

best spray to kill chickweed

Common Chickweed (Stellaria Media) serves as a breeding ground for insects, pests and plant viruses, and can produce more than 800 seeds. Chickweed doesn’t grow more than two inches, and can be easily identified by its small size, and five white petals.

It tends to grow in moist, cool areas, and in a wide range of soils, particularly in neutral pH soils with high nitrogen. Chickweed is easy to control, as long as you get rid of the weed when the plant is small, and before it flowers. 

Once you pull the chickweed directly from the soil, you should aerate the soil using an aerator or shovel. You can also eradicate chickweed with a herbicide such as Bonide Weed Killer or Ortho Weed B Gon Chickweed, Clover & Oxalis Killer. 

Quackgrass (Elymus Repens) – Grassy Weed

Also known as Couchgrass, Quackgrass is a troublesome perennial grass that thrives in relatively cool, moist climates. Couchgrass is claimed to be one of the three most serious weeds, because it infests more than 35 crops in over 65 countries. 

Quackgrass can be killed with a non-selective herbicide that contains the active ingredient Glyphosate. However, it is important to note that even though Glyphosate kills Quackgrass, it can also kill desirable grasses. So, it is best to use an organic weed killer such as vinegar to kill Quackgrass. 

Household vinegar however won’t kill Couchgrass, so you will have to step it up a few notches with an industrial-strength vinegar concentrate such as Natural Armor Home & Garden Vinegar to get the job done right. 

Canada Thistle (Cirsium Arvense) – Broadleaf

best spray to kill canada thistle

Stemming from Europe and Asia, Canada Whistle is regarded as a “tough weed that just won’t quit”, because this creeping-root perennial, designated noxious weed in over 43 states is difficult to control. It can be easily identified by its broad, spear-like leaves, extensive rootstock, and ridged and hairy sterns.

Canada Thistle can flourish in a wide range of moisture conditions, and typically crops up during springtime. It can be effectively treated with certain herbicides such as Triclopyr 4 EC applied over a course of one to two years depending on the level of thistle infestation. 

Triclopyr 4 EC is easily absorbed by Canada Thistle’s extensive and deep root system, making it easy to treat. You can also mix Triclopyr 4 EC with glyphosate for quick and effective treatment against almost any target weed. 

Crabgrass (Digitaria SPP.) – Grassy Weed

best spray to kill crabgrass

Also known as Finger-Grass and Fonio, Crabgrass weed is often considered lawn pests, and is aptly named for its ability to grow low to the ground with stems protruding from the center, resembling crab legs. This opportunistic annual weed is fairly easy to manage by mowing your lawn regularly, as long as it has not set seed yet. 

Crabgrass does die at the end of each growing season, but on the downside its seeds can remain viable for at least three years in the soil. If you only have a few Crabgrass plants in your lawn, you can simply pull them out by hand using a digging knife or hand trowel. 

But if it has taken over your lawn, you should treat it with a strong product such as BioAdvanced Weed & Feed Crabgrass Killer. It is designed to kill crabgrass as well as other grassy weeds, as well as strengthen your lawn by fortifying it with the right nutrients. 

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