Late in the afternoon the ocean finds its way to Murrieta through the Rainbow Gap, a cool breath slipping between the hills that turns a hot day gentle. Environmental Concepts Landscape Management looks after lawns in a valley shaped by that daily trade of heat and sea air, where grass surges in spring and wants care in every month. West of town the Santa Rosa Plateau holds its old Engelmann oaks and, after a wet winter, shallow vernal pools ringed with wildflowers. Closer to the house the work is cutting the grass, edging the beds and trimming along the fence line, the kind of care that keeps a property looking settled instead of sunburned. On a March morning, with the turf mown level and the beds outlined clean, the whole yard seems to lean toward the green hills on the horizon.