March in Libbytown is sand and meltwater and the rumble of the rail yard, the exact stretch of the year when a place looks its worst. L S T Landscaping Inc. handles that turn — spring cleanups that sweep off the winter grit, then mowing, trimming and edging all summer, leaf removal in the fall, and plowing, shoveling and sanding once the cold comes back around. Working both halves of the calendar means knowing a property twice: where the water pools, where the plow can push, where the mower can't reach. That knowledge is what makes the finish look easy. Calls come from across Portland and from Westbrook, South Portland, Scarborough and Gorham.