For two weeks each October the sugar maples in Maple Grove Forest Preserve turn all at once, and the west side of Downers Grove seems lit from above. 1st Impressions Landscaping works the lawns beneath that color — the mowing, the trimming, the long fall cleanups for when the leaves finally let go. A yard here is mostly shade and old roots, and coaxing grass out from under a canopy like that takes patience more than horsepower. The reward comes when the hoses are rolled up and the turf reads clean all the way to the street. That first look from the sidewalk is the whole job.