April in Hopatcong is meltwater and mud — the last gray piles going down in the shade while the south-facing yards are already greening up. Lenny's Landscape works both ends of that thaw: the cleanup that gets sand, grit and winter's leavings off the grass, then mowing, trimming and edging straight on through to the fall. When it turns back the other way, the trucks go to plowing driveways and clearing walks. Sitting up on the Sussex County highlands, the borough holds winter a few weeks longer than the towns below Route 80. Knowing that calendar is half of doing the work well.