Getting hymenocallis to bloom
I have a bulb I got on sale called Ismene, but I am quite sure the proper name is hymenocallis. It grows well in a pot for me for 3 summers now. Gorgeous green foliage and bigger every year but not the slightest hint that it will bloom. Anyone know what I should (or should not) do to get it to bloom?
It is in full sun from dawn until about 2. Probably a bit crowded in the pot. Watered haphazardly but I am not so neglectful that it wilts. I don't feed it.
I overwinter in the pot - in fall, I let frost hit it once and cut off the leaves. Stored in a cool dark basement after the soil dries out. It seems okay with this because it gets better each year.
Thanks for any help.