The Christensens have a three-car garage but didn't like looking at so much driveway. So they set out a table and chairs on the paved area with a big pot of 'Lemon Rose' geraniums (Pelargonium graveolens). Such scented geraniums can be used to flavor lemonade: Just boil a cup of sugar and a cup of water, turn off the heat, and add about a dozen leaves. When cool, squeeze out the leaves, add a cup of lemon juice, and refrigerate. When you want lemonade, mix about 1 tablespoon of the concentrate per cup of cold water.