She said it was a fungicide to help it grow in cold soils. That's why they offered the untreated, for organic growers. I figure if I can grow it out without any other non-organic things then at least it will be vaguely acceptable for an organic farm if you want to try the other varieties.

I think I'm going to set up a field variety trial type thing since I've now got six varieties. Same amount of space for each variety, similar soil, etc so I can get a good starting evaluation on each of them. Then I can keep them all for seed and have a separate section for the grow outs for fiber. As far as I can tell/remember from book, flax is inbreeding mostly, so I should be able to grow them out pretty close without worrying about crossing. Actually I need to think about that. I've got some open space in my crop plan I can juggle some things around.