I have a dwarf musa banana tree I am growing via hydroculture indoors. During warm sunny days, I put him out on the deck in full light. I've only had Nanners about a week. He arrived looking healthy and vibrant and still looked so after I transferred him to Hydroton. A few days later, though, one of my kiddos accidentally dropped a library book on him and knocked him silly, damaging one of his leaves. He went downhill very quickly. All of his leaves withered and I thought he would die, but yesterday, he unfurled a pretty new leaf.
I tried to pull the dead and dying leaves off, but they do not come easily. I am a relative newbie to growing plants and generally am not successful, but the plants I know you have to trim dead leaves from typically let them go easily.
Do I need to cut Nanners' dead leaves off and, if I do, what is the best method of doing so?