| If you search "breeding ornamental plant" some nice books will pop up, one of which has a section on breeding daylilies (it's hard to say more without making it of a commercial nature; terms and conditions). A few pointers: Breed tetraploids to tetraploids and diploids to diploids. Sometimes tetraploids and diploids will yield tetraploid offspring, but this doesn't happen often. Keep a plan in mind. This applies to all plants, but making crosses willy-nilly won't accomplish anything, unless you are lucky. Also, use the best plants. Don't repeat what others have done, as in don't create what someone has already done. If such a plant exists, the world doesn't need another. Why do you want to refrigerate pollen? I thought daylilies tended to bloom at around the same date. I know that you can store pollen of almost anything for maybe a week (that estimate may be too low) in a dry container in the fridge (not freezer). | 
