Jersey City grows its trees between things — a sycamore in a four-foot cut of sidewalk at Hamilton Park, a ginkgo pinned between a stoop and a bus lane. Jersey City Tree Services works those margins, where tree removal is a rigging problem measured in inches and every piece comes down on a rope to a waiting truck. Pruning lifts a crown clear of the second-floor windows; trimming keeps a back-yard maple from filling the only patch of sky a brownstone gets. Wind off the Hudson comes over the Palisades edge and shakes loose whatever was ready to fall, and storm damage cleanup means the block is passable before the morning rush. A city tree kept in shape gives a street its whole character, and these blocks are full of the proof.