Petunia Surprise Black Jack
There are several black petunias now but many growers think their popularity will be short lived.
Well, in recent years most of the newly introduced petunias do not require deadheading in order to keep blooming.
Petunia Blue Vein Merlot
A smaller flower with a mounding habit, some pinching recommended to maintain fullness
Petunia Good And Plenty Purple
Very floriferous, trailing but compact
Petunia White Russian
Proven Winners, spreads to 24"
Petunia Hell's Bells
From Hort Couture the first true orange petunia
Dwarf petunia with large flowers, will not spread out
These are just some of the new introductions that you might want to look for this year and below are two previous introductions that have excelled in my hot summer garden.
All petunias benefit from regular fertilizing and trimming in July to continue strong until frost.