I planted Bill Norris in 2016. It did not bloom the first year and maybe not even the second year. The pic below is last years bloom (2018) but, as you can see in the pic, I have it in a spot where is it shaded by the house until around noon; then as the sun heads west, it is shaded by a very large cedar tree.
I see in the data base it has 101 children, so obviously it must be quite easy to hybridize.