Another petunia question
 

I can't seem to make my petunias happy to save my life. I have them
in dappled shade and they get leggy and don't bloom well. I have them
in morning sun and protected from afternoon sun and they just sit
there. Then there are those that get mid morning to mid afternoon sun
and they look sunburned! I was just sitting here pondering and
P.Allen Smith came on and his look fabulous! What do I do?