Tree Lucerne - Chamaecytisus tagasaste

Does anyone have any seedlings of tree lucerne for sale or even seeds that I can try to grow myself? My climate seems to be perfect for them but I cannot locate any. Please help?

I'm curious about this one,
it seems to be uncommon in the USA.
I know tagasaste has a bit of an invasive reputation, maybe it's a real problem over there.
I'm...unwelcoming...to some permie pioneer plants, but I've never seen anyone with a tagasaste problem.
Nitrogen fixation, animal, bird and bee fodder, coppice, windbreak...

I got some seeds of this years ago, from JL Hudson I think. They did not succeed where I used to live (Georgia).....Here in CA now I have three plants in the ground. The one that seems to be happiest is actually in partial shade of an oak. The don't really appreciate our occasional freezes (12-15 degrees once or twice most winters) but they've been growing out with a bit of dieback and so are gradually increasing in size, and last spring I saw a few flowers. But it sure doesn't seem to be behaving like an aggressive coppicing shrub that I would want to slash back on a regular basis for animals, as the AU permaculture literature recommends.....

Ok, I guess if they cannot handle the occasional freeze in California, they would die to the ground here. It gets below freezing and stays that way for quite a while.

I AM able to get tagasaste though... so I will hold out for these instead. Thanks for your responses.

Hello, I'm interested to know if you or anybody has been able to procure seeds or seedlings & any success with them?
Kym