When should I apply Slow-Mow?
This depends on where you live.
In the Northern tier of the US, the best time to apply is in the Spring, when your grass is actively growing (you’ve cut it twice) and temperatures are regularly above 60 deg F. Discontinue use in the peak summer months when daily high temperatures exceed 75 deg F for several days. These Northern tier grasses typically have a slower growth rate at this time of year.
In the Southern tier of the US, you may apply in the Spring through the fall, beginning after the grass is actively growing (you’ve cut it twice). Discontinue use as daily high temperatures fall consistently below 80deg F.