What can lead to the occurrence of weeds in a lawn?

The occurrence of weeds in a lawn is often influenced by the preparation of the site during the establishment of the turfgrass. Proper site preparation includes removing existing weeds, ensuring good soil quality, and creating a level surface. When these factors are neglected, it can lead to a proliferation of weeds, as the turfgrass may not have the necessary conditions to thrive. For instance, if the soil is compacted or has high weed seed density, the established grass may struggle to establish itself, leaving gaps that weeds can exploit.

Poor site preparation can lead to an uneven distribution of seeds or roots, which enables weeds to germinate and grow more easily. In contrast, proper selection of turfgrass cultivars, regular mowing, and watering practices generally contribute to better turf health, helping to outcompete weeds rather than encouraging their growth.