March at Bethesda Park is loud with birds, and the pines are still dropping needles onto everything below them. JJ's Landscape & Maintenance opens the Lawrenceville season there and in the neighborhoods around it — winter debris raked out, beds edged and mulched, shrubs cut back before new growth starts, the first mow of the year setting a height for all the ones after. String trimming tidies the fence lines and mailbox posts, and the blower finishes the walks. It does not take long for a property to look like somebody has come back for it. That first cut of spring is a good day's work.