Hi Nev, yes you can freeze brom seed for longer term storage. See the link below to a previous discussion on this topic.

Also, here is some related info that came from Andrew Flower.

" Extended seed (and pollen) storage can be achieved by keeping it cool and dry - temperature around 3-5 C works well. To keep seed dry, enclose it in a small sealed glass/plastic container with a dessicant such as calcium chloride or silaca gel (obtain from a chemist). Ideally, you would also place the first small container in a larger glass/plastic container that also has some dessicant in it.
This worked well for me when I was running a seed bank, and also with pollen storage in my nursery.
Cheers! Andrew Flower,Editor, Bromeliad Society International."

Nev, If you have any other questions about freezing seed, let me know & I'll see if I can answer, based on my trials over the last few years.

Cheers, Andrew.

Here is a link that might be useful: Storing brom seed.

I think that there are a couple doomsday seedbanks/vaults. They are all in very cold places. I wonder what is their plan to get the seeds to warm places after doomsday.

Yes I have wondered about that too, Bromadams.

I have been considering ordering some brom seed through the Brom-L group. Eric Gouda keeps it stored at 3% RH (relative humidity). My concern is that by the time it is posted from Europe to Oz, it might no longer be viable?

K

My german friend, Timm Stolten, the curator at Heidelberg Botanical Garden
had germinated Dyckia seeds which stored in freezer for 11 years !!! successfully.

Here is a link that might be useful: Dyckias from the Iceage

Hi everyone - Thanks a lot for all the interesting information. I guess I'll have to see what works for me.

All the best, Nev.