In an ideal world no matter where you live it should be bu the month. In the spring the grass almost needs to be mowed every 5 days, then skips when dry so it would even out. But explaining it to a residential customer is difficult. I have a few that do charge per month because they run the sprinklers too much and have Tru green there all the time.
Commercials are a different storey. They want everything to be kept up with weekly visits.
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