I do not deadhead my lilies. Just do not have time, so occassionally seedlings appear. I do not try to cross varieties deliberately so I do not have any idea which plant may have produced the pollen and what the seedlings could look like. Since the number of seedlings could be from 50+ plants per bloom, I obviously cannot grow them all out. Just let a few and I have no idea if the ones I grow out are the best of the bunch. If I let them grow long enough to see what the pads look like, I might could decide which ones to keep on that basis, but usually I do not wait that long even. Time and space constraints. There are several "named" lilies that were actually natural crosses that ended up being worth naming, so do not think that just because it was not deliberately crossed manually that it is not worthwhile. Deliberate crosses are done so often to get a specific look or trait. Beautiful lilies cancome from natural crosses as well. Seedlings will never be the same as the mother plant or father plant, unless they are species plants, because they will have traits from both. That is what makes the hobby have so many various plants with various colors, sizes and bloom shapes.