Trilogy Salmon Morn petunias cover each branch with large, rain-resistant, bright white flowers edged in salmon. Plants flower continuously from late spring through frost, do not develop bare centres. In hanging baskets and pots, Trilogy Salmon Morn petunias maintain a round and tidy shape. In beds, borders or the landscape, plants are more spreading, to 12-16 in. tall, and 3 ft. across.