2003 AAS Flower Winner. A distinctly different blue and white petunia, the 2½-inch blooms are pure white in the center with a soft transition to velvety blue on the petal edge. The bicolor pattern is highly visible from a distance. The best garden performance will occur in full sun. The branching plants will spread 18 to 30 inches and attain a mature height of 15 to 20 inches. Merlin Blue Morn is highly recommended for use in hanging baskets or patio containers. Pelleted seeds.