Welcome to HC. , Its very difficult to know whats up without pictures.
Are the leaves a light green , dark green, yellow on the tips, all yellow, curling up, Etc. These are things that need to be known to properly diagnoise and possibly fix your problem,
.....good luck
__________________
Any plants referred to, by me Pearl, including, but not limited to, as having been grown, in need of help for, in search of advice for, or shown off to the world wide web with pride and joy, are entirely fictional.