Just visited the International District trees again and noticed the leaf litter along the sidewalk below was littered with GERMINATING seeds! A few were sprouting already but mostly just turning green and cracking open. I guess the December freeze didn’t kill them!
I collected a pile that I’ll try to sprout in case anyone else wants seedlings of this tree later.
I looked at the edge of the public parking lot near the second tree on the alleyway, but no seeds there.