All of these things are partially true, but not fully.

Your yard is only rarely representative of the "natural" ecosystem that would otherwise exist. Generalist species may find your yard similar enough to thrive, but specialists (carnivorous plants are a popular example) likely will not even if they're native to the immediate area.

Non-natives can actually be even more efficient than natives at many things, including carbon capture. Prickly pear is a highly invasive example that outcompetes native crops with higher efficiency photosynthesis, huge adaptability to arid environments, and massive carbon capture potential due to its rapid growth rate.

Speaking of prickly pear, it's a native family in much of the western US, but it remains invasive in yards throughout that range because the ecological succession that would naturally control its reproduction takes decades and isn't allowed to occur. Don't plant it.

Your yard is a cultivated environment. Be cognizant of what you're planting and how it interacts. Natives are often a good choice, but there are perfectly valid reasons to plant non-natives or avoid certain natives.

Thanks for your response. I’ll think on your points.

FWIW, In my area of the world I hear about non natives being bad but they often seem to grow very well, eg in the wild. So it seems to me that they are often well suited to the local environment. The concern then seems to me to be an implicit preference for what was already here over new comers. To me, seems a bit “anti immigrant” and I just can’t relate.

I definitely appreciate the point that we should avoid catastrophic decrease in diversity, and bringing in foreign plants could raise risk of that.

See my comment above, but one reason they thrive is lack of predation.

And yes, the rhetoric can be feel very anti-immigrant (something my immigrant spouse picked up on very quickly)

One point on top of the poster that I think also matters, especially if you want more people to get involved: aesthetics.

Any regions of the world people actually live have really beautiful natural plants that are often excluded from peoples yards just because it’s not what the builder has massive stockpile of. You can use local plants to make your property look distinctly and beautifully “of a place” and not some e.g generic American burb or “trying to imitate” some other place (palm trees in Seattle, im looking at you)

> FWIW, In my area of the world I hear about non natives being bad but they often seem to grow very well, eg in the wild. So it seems to me that they are often well suited to the local environment. The concern then seems to me to be an implicit preference for what was already here over new comers. To me, seems a bit “anti immigrant” and I just can’t relate.

This seems like a plot of some South Park episode or Onion news article TBH.

> Honestly, the only reason to plant non-native plants is vanity.

That's a bit extreme. Planting a bit of herbs and veggies in my garden alongside the native forest on my land will neither destroy the local ecosystem nor is it for vanity (nobody can even see the plants but me and my family).

If you live on a small plot of land and you only have room for a few plants, then native is a good choice. I have acres and acres of untouched woodland on my property. A few bell pepper plants in my garden does no harm.