Houston sprawls across more than six hundred square miles, and on the Saturday in early October when the first real cool front blows through, it feels as if every one of them throws its windows open at once. The humidity falls away, the sky turns the hard, rinsed blue that only follows a norther, and people suddenly want to be outside in their yards again. Houston Landscape Pros does landscaping and lawn care across the city, catching yards at the turn from summer survival back to pleasure. A fall trim, refreshed beds and a lawn brought back into shape after the punishing months make that first crisp weekend feel earned. It is a short, sweet season on the coast, and a yard that is ready gets to savor every hour of it.