Julia, I had to start from scratch collecting my plants when I moved to Oregon as they all died in MS. Polly Bishop had them all but she had passed away before I left for OR. Luckily she had given pieces to a number of other gardeners so I have gotten many of them back. Of course many of our dealers had them too, including a few that I received from Fernwood.
It was 105F the day I moved from MS. I had dug ~2K daffodil bulbs before I left and they were shipped in huge china moving boxes via FedEx. I shipped a few irises and daylilies and carried a few plants with me in the car, avoiding the state of CA so I didn't have to go through inspection stations. I also had 15 musical instruments in the car with me that did not want to be exposed to 105F either!
I had made HUGE crops of seeds on the iris, daffodils and daylilies so I was able to grow out thousands of seedlings of all of these here in OR. Seeds move very easily. That way I could carry on all my lines without interruption even though I might leave the parent plants behind.
The yard looks pretty full now, amazing that so many came from that box of seed brought from MS 3 1/2 years ago! Of course living in "horticultural Heaven" here in OR, I have bought a good many plants too!
Kevin