Seed hardiness of Trachycarpus fortunei?

[tarnado]

So. I popped by the thrift store (shopping for a wheelbarrow) today when I took a photo of these three Trachycarpus fortunei (I assume, looks like it to me?).

I stepped closer after taking the photo and discovered that this was a cluster of two girls and one boy, and the females had several panicles absolutely chock-full of fruit. 

It is mid-April here in Anacortes, Washington state. Last winter we had a sustained arctic air breakout and temperatures fell to 9 F / -13 C. 

The palms took the days of howling arctic winds with aplomb, as you can see. My question: will the seeds still be viable after exposure to that kind of cold? Thanks for any and all intel!

[Chester B]

I say yes.

[tarnado]

Well, Chester B, you are a ~~WINNER~~

I did not know what to do with my seed haul, so I found a neglected spot in a mulched zone. I buried them an inch in the soil and then covered it all with mulch.

 

Then I chucked some water on the area every so often. I also broke my arm early this summer so I was not taking care of anything.

 

Then! It rained two weeks ago, and a few more times since. The weather has turned almost chilly at times.

 

Presto! There, in the mulch, was a little palm sprout! And then another! And then four more! Now thereare eleven little sprouts and maybe more this morning!

[tarnado]

Three more this morning, I swear there will be more this afternoon!