Perched up on salvaged bricks, the half-pipes made perfect planters with an industrial edge that oddly complemented Sugar's pretty favorites: pansies, lantana, verbena and heliotrope.She laid two of them by the long wall of the taller building next door and planted a clematis vine at one end and a moonflower vine at the other: the clematis because the variety she picked had the prettiest purple bloom and the moonflower because it opened in the early evening and emanated a heavenly scent just when a person most felt like smelling one.