you are the man with the golden germination touch. nicely done. Love the Bismarckia.

This is a good example of the difference fresh seed can make.
( and why germination experiences can vary so widely )

90*/32C to 100*/38C does seem like the ideal temp for these.

My experience has been that the warmer temps - between 90-95F - result in better and quicker germination of almost all species. I know thats a general statement, but seems you can't go wrong with warmer temps for germination. I ma getting ready to paly the germination game for the next few months. Fun just to watch the seedlings grow when its cold outside.

Hey Steve, you might check some of those Vegas seeds I sent. I just found one that has popped!!

Good Deal 8)

I'll take a good look at them tomorrow, Have you had any luck with the Arenga seed yet?

Not the Arenga yet, but I did pot up a bunch of those Phsosperma or what ever. They seem to be doing ok.
Also, have actually popped two Taitungensis seeds which doesn't sound like much, but for me, THATS GREAT!!!

Congrats on the Taitungensis seed!

The Arengas I've germinated in the past have taken 2-3 months, nothing yet on the others but they'll catch up 🙂

Big enough now to pot up.

Need at least 12" containers to accommodate initial root development,I make mine from 6" PVC split in half and then taped together, this makes it a lot easier to tranplant later on.

A little larger one 8)

( 2 years old this Summer)

I saw that conduit idea last year when I came out and I tried it and it worked like a champ. Not sure why I stopped other than it was a pain for me to cut it. However now at work, we got some "split duct conduit" and thats how it comes from the manufacturer. You just snap it shut and "tie wrap" it.
So I think I will try it again later with some stuff.

That is a great idea!
Congratulations on the seeds too, that was quick

Benjamin,
Thanks! These suprised me too, I wasn't expecting to see anything until next March.

With most of my Palms in containers, the ones with deep roots can present some problems. Not having room for a bunch of 20 gallon containers, I have been lifting these a bit when potting up. ( only at the seedling stage )

As an experiment, this one was lifted 6" ( notice the old fronds, they were at the previous soil level)
This was done this past Spring and the Palm seems to have adjusted with no ill effects 8)

I've seen photos of these growing in smaller containers, is anyone here doing that? and how is it working out?

With the lifting thing...
I took a bunch of my CIDP & Dachy seedlings that I noticed I was getting some problem with the 2nd leaf was almost rotting at one tiny place cause ing the leaf to fall over (not off) and then start growing normal. So there would be one spot in the leaf where it would be brown and would bend over. After that spot, they would go back to normal.
What I did was repotted them, lifting them up to where the spot where the seed wrapped around the "trunk" and carefully cut the seed off.
What I have noticed is booming growth (caused by the upsizing of the pot) and no more browning. I think they were planted too deep and the water would set in there where the seed met the 'trunk" and molded.
I will take a pic of this later today maybe.

Here is a pic of the problem I spoke of in the above post. The leaf stopped growing and formed a fold in the leaf where the leaf basically died from that point up, but lived going up to that point. The point was under ground and I think is from rotting. But after I cut the bad piece off, the leaf then continued to grow and put out other perfectly normal leafs. This pic is of just one of many many many things this happened to. I then cut the seed and the chord that attached the seed and peeled it off the tree and re potted. Since then, they have grown a bunch.

Glad they recovered, I would bet that yours will be 4X the size it is now by the end of next Summer 8)
Link is to an illustration which shows ideal planting height for seedlings,
http://edis.ifas.ufl.edu/EDISImagePage?imageID=480379614&dlNumber=EP238&tag=FIGURE%2011&credits=