There is 3 1/2 weeks difference in these pictures.
It is truly amazing how fast petunias grow.
I spent a lot of time making my huge planter and painting it with the metallic paints only to realize a few weeks later the pot does not even show anymore lol.
A good rule of thumb when it comes to finding the perfect place for your petunias is the lighter colors need filtered sun rather than full sun and brighter or darker colors can handle the sun better.
If you can find the perfect spot for your petunias they will really put on a show with lots of blooms every day to brighten up your yard.