I'm certainly not an expert on the subject and look for any new ideas or advice from those who grow daylilies in containers. However, I have been growing the majority of my daylilies in pots now for the last 6 or 7 years and have discovered that growing them this way can be challenging, but also rewarding. One big thing I learned the hard way is that daylilies in pots require (not like, but require) excellent drainage. Especially in winter if you have water accumulating on dormant roots you will have problems with root rot. Same goes for any tuberous bulb really and daylilies are no different in their requirements. The subject of what mixture to grow them in is as varied as people's opinions, but I think I've finally bumbled onto a pretty good mix that allows for
needed drainage. It is composed of sand (builders quality, not play box sand), bark fines, aquarium gravel, perilite and clean well aged compost. I was having a hard time finding bags of "bark fines" locally, so I created my own by screening pine bark mulch myself. The small "leavings" I use in my daylily pots, the larger chunks go out to the garden as mulch. Luckily I have available to me a proprietary potting mix that is basically the aged compost/sand composition, so when I make my batch of potting mix for daylilies, I usually just have to add the perilite, aquarium gravel and bark fines. There have been many dead daylilies that I have learned lessons from over the years, such as my theory on crown rot, and how to overwinter daylilies outdoors etc. But that's it for now........Maryl
