University of Maryland Extension

Conditions Favoring Lawn Weed Growth

Back to Tips for Weed Control 

A healthy, dense, vigorous lawn is the best defense against weeds. Practices that contribute to less weed problems include:

Visit the Lawn Weed Identification section to help identify what's growing in your lawn.

Common Lawn Weeds and Conditions that Favor their Growth

Problem/Condition Weeds That May Grow
Shade-intolerant turfgrass has begun to thin out and decline in the shade Ground ivy, wild violets
Compacted soil Broadleaf plantain, goosegrassknotweed, prostrate spurge, annual bluegrass
Droughty soil Yarrow, prostrate spurge, knotweed, black medic, goosegrass
Wet soil Bentgrass, roughstalk bluegrass, Nutsedge, wild violets
Lawn mowed too short Chickweed, crabgrass, annual bluegrass
Lawn grown with infrequent
applications of nitrogen fertilizer
Plantain, black medic, lespedeza, nimblewill, chicory, clover, common speedwell
High levels of nitrogen Annual bluegrass, Common chickweed
Acidic soils Red sorrel
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