That’s encouraging to hear, because they’re a little hard to get rooted as cuttings. I’ve never seen a seedling here because we’re really boarder line for Japanese maples here. Bloodgoods do survive here and some of the other cultivars (and species) IF they have a chance to get established. My guess is any late season seedlings are too tender to survive the cold, but I don’t know.
I figured I might try to get them to germinate inside in the early spring and xfer outside to get a full season in the ground before next winter. Don’t know off hand if the Acer Palm seeds need a particular stratification schedule or not.