A core idea of Richard Dawkins's second book “The extended phenotype” is that genes can also select for anything affecting the environment of the organism - i.e. genes for characteristics/behaviours that are external to the organism itself.
So there could be a gene selecting for getting watered by humans (e.g. via wilting or colour).
This can also create a connection between genes and memes e.g. a new flower characteristic could be genetic but affect popular memetic choice.
The concept is hard to grok & explain, so beware that there's a good chance I've misunderstood and mistranslated the idea.
https://en.wikipedia.org/wiki/The_Extended_Phenotype#Summary
Why should it be hard to grok? Selection just happens, it doesn't "care" if it's natural or based on human preferences. Even human-free selection doesn't guarantee a long run since genes can paint themselves into a corner (see natural extinctions). Iow, it's what it is.
Pretty sure natural and artificial selection have distinct properties. As do self selection and symbiosis, and even symbiosis/parasitism.