crabgrass
noun
crab·grass
ˈkrab-ˌgras 
: a grass (especially Digitaria sanguinalis) that has creeping or decumbent stems which root freely at the nodes and that is often a pest in turf or cultivated lands
Examples of crabgrass in a Sentence
Recent Examples on the Web
As an annual weed, crabgrass is killed off by the first frost.
—
Arricca Elin Sansone, Southern Living, 11 Apr. 2026
New plants emerge from seed produced by last year's crabgrass crop.
—Megan Hughes, Better Homes & Gardens, 5 Apr. 2026
For example, crabgrass preventer products may be on sale in February, but they should not be applied to a lawn until late April, about the time the redbuds bloom.
—Beth Botts, Chicago Tribune, 28 Feb. 2026
For example, the best way to control crabgrass is with a preemergent herbicide in the spring.
—David Beaulieu, The Spruce, 24 Jan. 2026
See All Example Sentences for crabgrass
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Arricca Elin Sansone, Southern Living, 11 Apr. 2026
New plants emerge from seed produced by last year's crabgrass crop.
—Megan Hughes, Better Homes & Gardens, 5 Apr. 2026
For example, crabgrass preventer products may be on sale in February, but they should not be applied to a lawn until late April, about the time the redbuds bloom.
—Beth Botts, Chicago Tribune, 28 Feb. 2026
For example, the best way to control crabgrass is with a preemergent herbicide in the spring.
—David Beaulieu, The Spruce, 24 Jan. 2026
See All Example Sentences for crabgrass
Cite this Entry
“Crabgrass.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/crabgrass. Accessed 18 Apr. 2026.
Copy CitationKids Definition
crabgrass
noun
crab·grass
ˈkrab-ˌgras
: a weedy grass with creeping or sprawling stems that root freely at the nodes
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