N. bulbocodium x standard daffodils by Brian Duncan, Northern Ireland • June 8, 2018 • 1 CommentClick any photo to see a larger view I was interested in Theo Sanders piece about tetraploid N. b. graellsii crossing with standard daffodils. I wonder if he means all graellsii are tetra ploid or just the larger more robust clones? I tried these crosses for many years,… Read more →