Thanks you Skane, I think I'll do just that what you and Neal said: air dry them, dust with a fungicide and store cool and dark in completely dry sand or vermiculite.
By the way, these were just three bulbs of hymenocallis. I have 12 others that I brought in yesterday evening. Normally the temps would be near freezing, but we're experiencing an exeptionally soft november; warmest since measurements began! Result: all of my 5 H. littoralis are still lush and green and even putting on new growth! My 7 other H. harrisiana look a bit more tattered, but still green with no growth.
My idea was to keep them outside until the first frost killed all the foliage and then bring them indoors for storage (either also out of their pot or keep them in, don't know). But as I said I brought them indoors out of slight panic (it was very windy yesterday) and put them in the attic where it's cool, but directly under a roof window where they'll receive light since they're still green.
What should I do? Could they last through winter all green?
