July in Coolidge Corner is heat coming off the pavement and deep shade under the street trees, and the lawns around Griggs Park hold on by inches. GoGreen LawnCare keeps them going through it — cutting high in the hot weeks, trimming the edges clean, feeding the turf when it asks for help, and clearing the yard out at either end of the season. Grass here grows in filtered light between houses that sit close, which wants a lighter and more frequent touch than any open field would. There is a plain joy in a small green square that stays green straight through August. The neighbors notice, even if they never say so.