Cut grass releases volatile plant compounds, including green-leaf volatiles, when its cells are damaged. These create the fresh, sharp scent associated with a newly mowed lawn.
What to know
Plants release some of these chemicals as part of their response to injury, and neighboring plants may respond to airborne cues.
People often associate the aroma with summer, outdoor activities and clean lawns, which can add to its appeal.
Common mistake to avoid
The smell is not proof that grass is healthier after cutting; frequent scalping can stress a lawn.
Frequently asked question
Does grass release scent even without mowing?
Yes. Bruised or crushed leaves can release similar compounds.
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