waves of delicate snow-white sutera, trailing white petunias, calibrachoa 'Million Bells Trailing Blue', flossy-topped periwinkle-blue ageratum, lavender-flowered verbena, and variegated vinca vine are effervescent partners for classic white and pink geraniums. Window-Box Basics By: Marjorie Gage, This Old House online
Petunias: white, lavender, deep purple. White nicotiana, blue campenula (?), deep purple heliotrope. Plant choice could be used to create an annual border. Placing container plants against an evergreen hedge makes it look very lush.