Julia, that looks like it might be stressed?
I know that 'Wildfire' is a sport from 'Firecracker', and that 'Wildfire' can revert back to the same coloring as 'Firecracker'.
Keep an eye on it to see what it does when it is feeling better. I love this one and it's sport version. Right now both are doing very well for me. I have them in 1/2 day sun.
