St. Augustine has been planting gardens behind coquina walls for more than four centuries, and the old city still wears its greenery like heirloom lace. Jax Outdoor Solutions keeps yards under that long shadow, where live oaks lean over narrow lanes and Spanish moss stirs in the air off the Matanzas River. In late afternoon the sea breeze pushes in from the Atlantic carrying the smell of salt marsh, a fine hour to see a lawn just finished: rows laid down neat, the walk edged straight, the hedges pulled back off the porch rail. Even a front yard keeps grand company here, with the grey bastions of the Castillo, the Bridge of Lions, and the clop of a carriage horse on the brick. Keeping a yard tidy in this town feels a little like keeping faith with whoever set out the first ones.