There are all sorts of other medium possibilities also for "parking" daylilies, such as vermiculite, sand, soilless potting mix, peat moss etc. etc. It would be a question of modifying one's maintenance practices to take moisture retention, or not, into account. I earlier mentioned having some new arrivals "parked" in a plastic crate - here's a picture. There are about 14 new daylilies stuffed in here, they've been there since the middle of May (haven't prepared anywhere to put them permanently yet!) and are quite happy, one has even flowered. They're in soilless potting mix, the crate lined with a garbage bag to stop it falling out. Some people use tote tubs or whatever they're called but that requires more medium because they're deeper.
