Fire island leaves are normally very light green, are you sure it's lighter than it should be?
That's mine hiding under that huge bressingham blue.
This pic was to show the red pets. but I think you can see leaf color too
I think there fire and ice in this bed, I know I ordered a bunch several years back, if this isn't fire and ice then I killed them all
If it is, then I've put mine thru hell!
Blazing full sun for 5 years then transplanted to bright reflected light (from the south side of neighbors house) on the north side of my house, it might get a few hours of evening sun toward the end of summer...