it’s illegal to reproduce/mimic license plates.

They developed the product and deserve to make some money from it.

Also they are purely decorative plants, it’s not like people need these things for food or any other reason. Hard to call that “predatory”.

yeah this is definitely a case of “let’s do this because it’s fun and try to think of a legitimate use for it later”.

also you can get glowing petunias now from https://light.bio/.