How important is it to use native seeds?

I want to plant Yarrow and Bee Balm in my fruit tree guilds to improve my soil structure and invite pollinators. I am in New Jersey.

Native Yarrow is called Achillea Gracilis but I can only find Achillea Millefolium seeds which is from Europe . Why it is so difficult to find native seeds for anything I want to plant is beyond me. Even native seed sources only offer European seeds.

Should I just go ahead and plant achillea millefolium seeds in my yard or should I continue searching for “native” seeds?