From Robbins Farm Park the whole city lies out to the east under whatever weather is coming, and behind you Arlington Heights climbs away in terraces of small, steep yards. You Can Do It Gardening works that hillside — mowing, edging, trimming and keeping beds and borders in order where a single lawn may be three levels held up by fieldstone. Slope work is hand work: a trimmer where a mower cannot sit, edges cut along the retaining walls, clippings carried out instead of blown downhill. April opens the beds up and October empties them of leaves. What sits in between is a garden a person can actually sit in after dinner, while the sun goes down behind the Heights.