I was thinking that someone had posted a link to Ron Reimer's sight already, but I didn't see it when I just looked so if not here it is.
https://www.signaturedaylilies...
For those that didn't notice, there is an hour + long video showing seedling beds and selection beds. I thought after watching the video that I am very generous with the spacing of my seedlings, I don't know how you even walk through a bed like that to see the blooms and make selections. Thousands of seedlings in very small space, I never would have guessed they would have been planted so close.