Being that this is my first winter with any sort of flowers in the ground, I have a question regarding my asiatic lillies. The flowers have fallen off, and I have left the stems/leaves to feed the bulbs, as I have read to do. However - the stems and leaves are now starting to turn yellow/brown - is this normal? I have been watering them, same as when they were blooming. I have not fertilized though, other than the soil that I transplanted them into. Should I apply any fertilizer now? Everything that I have read is to let them die back on their own, but is it normal for them to be turning like that?
Also, while I am thinking about it, someone ran over a few of them shortly after they were planted (they are at the corner of my driveway), and the stem was broken. I removed the broken piece, but left the rest in the ground, hoping that it was not the end of the plant. Is there any chance of it growing through next spring, or am I just wishful thinking? There actually are a few that broke off - one got blown over in some real strong wind (was only about 8" tall), one got flattened by my son's basketball, and then the ones that were run over... Not a good place to have planted them I guess...