There is a week in April when Frankfort turns from brown to a green so new it looks lit from underneath, and the rain that does it arrives in slow gray sheets off the prairie. Eternally Green Lawn Care, Inc. works to keep that color going long after April has spent it — regular mowing, tidy trimming, edges held crisp along walks and drives all season. Beds get mulched dark so the color has something to stand against, and the spring and fall cleanups clear away whatever the year is done with. Summer heat will try to bleach it and November will finally take it, but between those two there are seven good months of grass to look after. That is the work, and it is satisfying work.