Front yards on this side of Douglas County get used — graduation parties in May, folding chairs out on the grass, half the block drifting over before the light goes. Yard Card Queen - Castle Rock keeps those lawns ready for company: mowed even, trimmed tight to the walkway, edged so the line between grass and concrete looks like a decision instead of an accident. Spring evenings here run long and cool, the kind where somebody stands on their own lawn a minute past any reason to. The work carries through Castle Pines and Castle Rock and the neighborhoods laid out between them. A cut lawn is a small hospitality, and it reads all the way from the sidewalk.