Hi there tofitropic, pepper23 and pirl,
Thank you so much for taking the time to reply to my post, I appreciate it!
I thought for a moment it was something else because the flowers were more spread out than the typical, tightly packed flower head you see on others. It makes sense it is yarrow though since I get volunteers everywhere.
Thank you all so much and I wish you all a most blessed and wonderful day.
Take care,
Benny