Sometime in February, Jacksonville gets its first warm spell, and on a dew-heavy morning the lawns are strung with spider webs that flash like glass beads when the low sun finds them. That is the turning point for turf here, the stretch when brown winter grass starts showing green at the roots, and Total Spraying LLC does its lawn spraying with the growing months in view. A spray rig crossing a yard in the cool, still air is methodical work, a single unbroken pass from the front steps to the side gate. The goal is a lawn that greens up evenly as the days lengthen, able to carry that color into the heat. By the time the mockingbirds are singing through the night in March, the work done in February is already rising out of the ground.