Welcome to the club!
It's the rabbits that are stealing mine. They're chewing them off at the base. The birds pick up the leftovers and carry them away to add to their nests.
I joined the Wave Petunia craze late, and will not frustrate myself with them again. First they require so darned much water (even with the water absorbing crystals in the containers) and Second they apparently are considered to be High Class Cusiene in the animal kingdom.
Next year I will plant something a bit less tastey.
Have you checked your container to be sure the roots aren't still there? Would the squirrils bother your containers? Anything is possible.
Gosh, I'd hate to think a human took your plants.
Squirrels and chipmunks, rabbits and raccoons. There is a good reason for hunting.
I love wave petunias but they do require lots of water to look “wavy”.....
I have some African Daisy...my first year to plant them in a planter box...I love them..such pretty colors, hope they bloom all summer and into the fall.
Tillacum...it is hard to believe someone would take your wave petunias. Your wave petunias must have looked very nice or tasted very good! ;o)