The answer to 'why is my lawn weeds' is that your lawn likely has an imbalance of nutrients, poor soil conditions, or inadequate lawn care. Weeds can thrive in lawns that are not properly maintained, often indicating underlying problems with your grass.
Common causes of a weedy lawn include compacted soil, low soil fertility, improper mowing, and lack of water. Weeds like dandelions, crabgrass, and clover can outcompete your grass if it is not healthy and vigorous. To address a weedy lawn, you'll need to identify and correct the underlying issues through proper lawn care techniques.