I am not sure if you mean extras of registered daylilies or seedlings. I will talk about seedlings. Different people do different things. Some people give them away, some sell them, and some hybridizers compost them. I think the reasoning for composting is that if they give seedlings away then people won't buy as many new ones from them. I compost the ones that are not worthy for anyone to grow. Others I give away to friends and members of various garden clubs.
