Importing plant material from UK to California
I'm wondering if any of you have successfully (and legally!) brought plants into California from the United Kingdom? We're visiting a lot of the great British gardens this summer and I'd like to bring home some Claire Austin iris corms as a souvenir for the garden.
I know this will be some level of hassle, and I'm willing to go through the whole rigmarole at the airport, customs, etc. -- has anybody done this who could advise on what forms I'll need to fill out etc?