Hey-hey, KellyRae! Yep, it's a thistle. Another attractive invasive.
One thistle plant can produce at least 4,000 seeds, so it's best to yank them out before they flower. But the butterflies do love them. And no, goldfinches don't eat the seeds. The 'thistle' seeds they love are actually from the niger plant from Ethiopia. And those that are sold for bird feeders are heated to prevent germination.
Deep and wide
7 hours ago