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I’m not surprised they don’t do that well in the PNW. It’s nothing like their home range.

Florida might be another story. I can’t imagine we have much research on the benefits of glowing plants in the wild, either.

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I'd guess you'd see a significant hit to insect populations and boost to predators as their hiding places become a backlight.

A bit of a tangent, one thing I observed is that petunias are fairly sticky to the touch, even if it's not really visible. While larger insect like loopers and cutworms are fine, small weak flying insects can get caught. Both harmful fungus gnats and helpful parasitic wasps (which would normally attack worm larvae) can get caught on the leaves.

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