Laura Bush petunia was selected as a Superstar because it is a fast growing, spreading plant with attractive pink or violet blooms. Additionally it is more heat tolerant than most other petunias. If it is planted now it will bloom strongly until July, hang on through the summer and then renew itself for a long bloom period through the fall and into the winter.
If we had a winter like this year it will bloom through the winter. If we have a cold spell in January and the plants freeze back, expect it to reseed. New plants will germinate in the spring. In my landscape Laura Bush petunias have naturalized in containers and raised beds among the satsumas and lemons. Laura Bush petunias also do well in hanging baskets. Plant them in full sun.