Question
I am looking ofr rhubarb seed to plant my own

Answer
Hi Hermien,
There are several U.S. companies that sell rhubarb seed but I think your government prohibits imporatation of certain seeds or there is some kind of lengthy, expensive process involved in shipping in agricultural products from outside Australia.

You can buy the seeds on ebay.

http://cgi.ebay.com.au/RHUBARB,-Victoria-20-seeds---dessert-vegetable_W0QQitemZ1...

http://edenseeds.com.au/content/default.asp  Eden Seeds/Australia

http://www.greenpatchseeds.com.au/vegetables2.html#r%20to%20s  Greenpatch Seeds/Australia

http://www.greenharvest.com.au/seeds/vegetables_r.html  Greenharvest/Australia

I hope this helps.
Tom