The small squared lots over toward Victory Gardens hold the evening heat, and by seven the sprinklers are ticking and the mowers have moved on. CHAVEZ LANDSCAPE spends its summer days on those yards: mowing, edging, trimming, mulching beds, and clearing out the growth in spring and again in fall. Modest ground rewards attention — a tight edge around a walk, a hedge line kept even, grass cut at the right height so it holds color through August. Neighbors notice the difference from across the street, even if they never say so. Around Dover, that's the whole point.