Yes it will grow plants cat litter is essentially clay with other things added. If your going to use it buy the cheap stuff that way it is free of perfumes dies and whatnot. Read the packages look for kolinite and shmectite (spelling). These are natural non swelling clays assuming I remember my sedimentary geology correctly. They will have trace amounts of K, Na, Ca, and so on. You will most likely need root tabs as well to sublimely missing elements.
Have a gniess day. -Scott
Have a gniess day. -Scott