This! There was a fern with tiny fern babies along the center of a frond!
It's Polystichum setiferum, Divisilobum Group—commonly called the divided soft shield fern or regionally know as Alaska fern. How do I know this? Well the fine person working the door at Garden Fever looked it up for me, but in my research I couldn't find mention of the little baby ferns so I doubted the ID and emailed one of the owners, Lori Vollmer, to ask. She emailed Richie Steffen (President of the Hardy Fern Foundation) and he confirmed, Polystichum setiferum, Divisilobum Group! It can vary in appearance, and is a Great Plant Pick. I do have one of these and now I will be eagerly watching for tiny fern babies.
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So since we're talking about Garden Fever I wanted to mention their 17th Annual Spring Book Soirée is coming up this weekend, Sunday the 7th! Of course instead of being an in-person event this year, they're taking it online. Tom Fischer, of Timber Press, will be talking about new gardening titles, and I will be giving a short talk on Fearless Gardening—it's going to be a great time! All signs point to tickets selling out soon, so if you're interested in attending you might just shoot them an email (firstname.lastname@example.org) to see if there are any spots left...