Immigrants are usually stronger than natives. It impacts the course one takes establishing a path through the property jungle. This way takes you toward a bunch of native greenbriar, which feeds the local wildlife unlike the beautiful but invasive english ivy. A rare moonflower is growing in that direction.. so the path becomes a discriminatory march against immigrants.
Part of the problem is that it's not like you can just plant some moonflower seeds and expect a crop. They don't even sell seeds for that kind of moonflower. You could try to transplant one, but that frequently is just a laborious way to kill a plant. That's generally true of natives. They're fragile.. maybe because that's part of the balance that was set up by the evolution of this biosphere.