Midsummer in Dyker Heights is a neighborhood of front gardens: clipped hedges, tomato stakes, roses trained on iron rails, and every strip of lawn tended like it is being watched. Tiros Landscaping and Gardening corp works right in that tradition — mowing and edging the front squares, shaping shrubs and hedges, weeding and planting the beds, and clearing the yard down to bare soil each spring and fall. The heat sits heavy on those blocks by noon, so the shears come out early and the watering advice comes free with the cut. A hedge squared off along the fence line changes the whole face of a house. Neat borders, healthy beds, a lawn that looks intentional — that is the day's work.