Knowledgebase

Please Identify This Early Spring Weed #744090

Asked April 13, 2021, 11:54 AM EDT

This weed has been in my lawn now for several weeks. Too early for crabgrass although it resembles it for sure. Please identify, and thank you!

Anne Arundel County Maryland

Expert Response

This resembles Roughstalk Bluegrass (Poa trivialis), a weedy type of turfgrass, particularly in its early-season vigor and prominent purple-hued stems. We cannot enlarge the photo to be able to see more detail, but you can compare traits you can view up-close with those listed on these resources, if you want to be sure of ID:

https://extension.umd.edu/resource/roughstalk-bluegrass (control measures also given here)

https://buckeyeturf.osu.edu/pdf/01_turfgrass_identification.pdf (ID key, which includes multiple turfgrass species)


Miri

Answered by the Home and Garden Information Center (HGIC), University of Maryland Extension. For timely gardening information and tips, subscribe to our Maryland Grows blog and quarterly newsletter. Follow us on Facebook, Instagram, and YouTube. Replied April 13, 2021, 1:10 PM EDT

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