Pink Petunia With White Spots . I waited weeks before buying the waves on sale. Petunias are generally insect pollinated, with the exception of p. Petchoa Sunray Pink, Petunia Hybrid Sugar Creek Gardens from sugarcreekgardens.com White spots on the leaves on petunias. Night sky petunia has beautiful blooms, speckled generously with white flecks around the vibrant color. Night sky trailing petunias can be pinched 18 to 24 days after sticking, when roots are well developed, to promote early branching and improve habit.