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There are a lot more to Criminal Botany. There's the chaotic evil variety, like planting an invasive species, planting bamboo near your enemy's house, and sprinkling mint on someone's garden plot. There's the chaotic good variety, like broadcasting native seeds on a grass lawn and releasing moles onto a golf field. There's chaotic neutral, like making air layering on trees that you don't own, or otherwise taking seeds, cuttings, or plantlets from them.

I thought you'd mention plant poaching. Which is just evil.

There's also guerilla gardening, where you plant stuff where you're not supposed to, typically municipal soil

Most plant–related crimes are pie–on–the–windowsill–on–Sunday tier.